The purpose of this work is to provide a metaphysical theory of properties and scientific laws. This sentence will require some unpacking. By a ‘metaphysical’ theory here, I mean a theory of what exists in the world. In this investigation I am primarily concerned with a theory of what properties there are in the world and the role they play in scientific laws. This may be contrasted with a linguistic or epistemic project, as it is not primarily about our language, (...) ideas, or theorizing but rather about what is in the world itself. Properties are what we may pre-philosophically think of as the characteristics of an object: such as its height, weight, color, etc. Investigation may cause us to doubt whether some of these pre-philosophical properties are genuine in a metaphysical sense: whether or not the property is actually present as a feature of the world. By scientific laws, I mean the statements we make in the form of exceptionless generalities about the world within the sciences. Here I do not mean to evaluate how science comes about these generalizations, only that they do and how these generalizations may be grounded in a metaphysical theory of properties. The link between these two things: properties and scientific laws, comes about because our scientific laws prominently feature properties: velocity, temperature, charge, viscosity, etc. After a review of some of the theories currently proposed in the philosophical literature along with a treatment of some of the problems that arise out of these theories, I will propose a new theory. This theory, entitled ‘Constitutive Trope Theory’ is a form of a ‘bundle trope theory’ as it proposes that objects in the world are composed entirely out of particularized properties. However, rather than proposing a primitive relation that does the bundling, this theory will propose that, at least for the objects we are familiar with, properties arise out of relations between lower-level properties that instantiate them. For example, a mammal may exist because of the relationship between the organs that lead to its unique properties as a mammal. Those organs in turn exist because of relationships between their cells that lead to their unique properties as a particular kind of organ. And so on down the chain until we hit ‘foundational properties’: properties which are not dependent on any other properties for their existence. I will say very little about these properties as I do not believe that any such properties have currently been found and will argue that such theorizing is premature before such properties have been empirically identified. Following this account, I will consider some of the problems that must be overcome and some final considerations in favor of this theory over other competing theories of properties and scientific laws. (shrink)

My aim in this dissertation is to analyze Black oppression and White domination. I attempt to show how social systems unjustly diminish Black Americans’ opportunities to form and pursue their conceptions of good lives and unjustly strengthen White Americans’ opportunities for the same. I believe that the accounts of Black oppression and White domination I offer are more adept at identifying the expansive and varied wrongs of Black oppression in America, analyzing the relationship between theorizing oppression and addressing oppression through (...) social and political change in America, and demonstrating the ways that Whites benefit from and are incentivized to maintain oppressive systems in America, than the accounts put forward by other theorists. In Chapter 1, I begin by discussing why I frame my project in terms of oppressive “wrongs” rather than “harms”. I worry the term ‘harm’ may be taken to imply that one has experienced subjective suffering or a measurable loss, whereas I am concerned with instantiations of oppressive systems even when they don’t cause the person subject to the oppressive system to experience a measurable loss or subjective suffering. In an effort to describe how I identify wrongs, I then argue that in virtue of the deep importance of freely pursuing one’s chosen life plan, any barriers one faces in pursuing his or her life plan must be justifiable. Barriers one experiences in virtue of his or her race are typically not justifiable. On this basis, I argue for my principle of racial injustice, which states that individuals are prima facie wronged by socially constructed barriers to their abilities to form and seek their conception of a good life if those barriers exist in virtue of their race. The “prima facie” nature of the wrongness is significant, I argue, because correcting the injustices of Black oppression will require that Whites face some barriers to pursuing our life plans that we do not currently face; it is not the case, then, that every race-based barrier is truly wrongful. I then discuss my understanding of race, arguing that race’s mutability across contexts and how one’s race is intimately tied to systems of subordination and domination support my view that race is socially constructed. I end with a brief history of White domination and Black subordination in the U.S. In Chapter 2, I outline general experiences of racism as espoused by Black writers and the statistical data that support these accounts. I then take a deep look at mass incarceration, including a history of the system, its disproportional impact on Black Americans, and the many resulting injustices inflicted largely on incarcerated Black Americans, their families, and their communities. I specifically highlight the recognition-wrongs inflicted on Black Americans through mass incarceration, where recognition-wrongs are acts that function primarily as a mode of dehumanizing individuals. Recognition-wrongs include verbal degradation through things like slurs, but also epistemic injustices, a concept developed by Miranda Fricker and others to identify injustices that wrong individuals in virtue of their status as knowers and communicators of knowledge. I then discuss kinship-wrongs, a concept I develop to identify wrongs that impact people’s ability to form and maintain relationships. I highlight and conceptualize these wrongs in an attempt to draw attention to their significance in racial subordination. In Chapter 3, I develop an account of oppression that is particularly responsive to race-based wrongs. I begin by showing why the influential accounts authored by Iris Marion Young and Ann Cudd are unsatisfactory for capturing Black oppression. I attempt to develop an account that is sensitive to the experiences of subordination detailed by Black Americans, equipped to address the material harms of oppression, and also able to make sense of the recognition- and kinship-wrongs raised in Chapter 2. I ultimately determine that a member of a c-group is subject to an oppressive wrong when, in virtue of his or her or their membership in that c-group, he or she or they suffer wrongs that are systematically perpetrated through social, political, or legal norms, conventions, or practices. A c-group is any collection of persons who share some set of constraints, incentives, penalties, and the like. I end the chapter by carefully describing my commitments to each clause of the definition of oppression, beginning by analyzing c-groups, describing systematically perpetrated wrongs, explaining what it means to be wronged in virtue of one’s c-group membership, and showing that my account of oppression is sensitive to both material and recognition-wrongs. In Chapter 4, I argue that we ought to understand oppression in the framework of a capabilities approach. I begin by explaining the concept of capabilities, which are real opportunities to function in particular ways. I then argue that securing capabilities is a better aim for justice than ensuring that people function in certain valuable ways because a focus on capabilities protects people’s opportunities to pursue the kinds of lives they want to live, respecting their interest in freely determining their life goals, while a focus on protecting valuable functionings inappropriately prescribes life goals to them. I show how capabilities can be utilized as part of a theory of justice, and argue that my utilization of capabilities, combined with the other moral commitments I defend throughout the dissertation, comprises a rectificatory theory of racial justice aimed at eliminating Black oppression. I argue that through the framework of capabilities, I can analyze both the material and recognition-wrongs of oppression, avoid the kinds of bad idealizations that often skew our understanding of oppressive systems and their impact, and make judgments about modern day society without developing an account of perfect justice. I next show that to avoid inflicting further recognition-wrongs, it is essential that oppressed peoples are the primary arbiters of which capabilities and oppressive systems should be prioritized in policy and advocacy. I conclude Chapter 4 with a brief sketch of how we can turn the priorities of the oppressed into public policy, moving from the prioritization process, to policy development, to implementing policies, and finally to monitoring and revising them. My final chapter, Chapter 5, shows how my account can also be used to analyze the norms of White domination that coincide with Black oppression. I begin by discussing “correlative capabilities,” which are those capabilities that are strengthened for Whites in virtue of the fact that Whites are not subject to oppression as Black Americans are. My discussion of correlative capabilities maps closely onto the advantages typically described as White privilege. I then turn to more insidious advantages Whites gain from Black oppression. I argue that oppressive norms advantage Whites by creating a social structure that empowers us with the capabilities to dominate racial narratives and ignore our racialized identities. The capability to dominate racial narratives consists in Whites’ abilities to pontificate on racialized events without justification for our views and still have our perspectives treated as mainstream, worthy of debate, and often as nearly definitive. I demonstrate this capability in action by examining Colin Kaepernick’s protest in the NFL, the coverage it received, and his resulting treatment. I then discuss Whites’ capability to ignore our racialized identities, showing how we establish Whiteness as a central, unconditioned perspective. Whites see ourselves as “simply people,” while seeing non-Whites as raced. This leads to Whites promoting color-blind conceptions of justice, which move us farther from true justice by ignoring social norms’ impact on policy development and implementation. I then show how Whites may go one step further and argue that we are victimized by “reverse racism” when efforts are made to eliminate oppressive systems. Finally, I end Chapter 5 with a discussion of how Whites are also disadvantaged by Black oppression, particularly in our capabilities to perform our jobs well, live morally, and establish and maintain relationships. I then conclude the dissertation by discussing how we might teach race-sensitive virtues in an effort to change White-favorable social norms. (shrink)

I here defend logical atomism. This defense rests on reinterpreting logical atomism as a search for logical forms. This reinterpretation has two parts comprising six chapters. In the first part, I do some historically-driven recovery. In the introduction, I review the literature on Russell's logical atomism. In Chapter 1, I argue that the dominant interpretation of logical atomism is wrong on historical grounds: it accounts for neither the history of logical atomism nor for crucial elements of the logical atomist texts. (...) In Chapter 2, I then use Russell's writings to recover what I argue is the core of logical atomism. I explicate the critical notions and essential ingredients of logical atomism using "Principia Mathematica" as the archetype of logical atomism. I argue that logical atomsts are term busters. The essential ingredient of a logical atomist's term busting practice is a higher-order logic with the power of impredicative comprehension. In Chapter 3, I discuss the widespread view that Wittgenstein held a version of logical atomism. Focusing on his pre-"Tractatus" writings and changes in his earlier views, I argue that Wittgenstein embraced a philosophy of logic incompatible with emulating impredicative comprehension in April 1914. As such, Wittgenstein was a logical atomist, if ever, in October 1913, possibly through April 1914. In the second part, having clarified what logical atomism is, I present a modern logical atomism. In Chapter 4, I develop a philosophy of logic for logical atomism based on the notion of a pure logic. I critically discuss normativity in logic, the epistemology of pure logic, and logical pluralism. In Chapter 5, I propose a formal logic for logical atomism. I argue for the logic of logical atomism being an infinitely-descending and infinitely-ascending simple type theory with impredicative comprehension compatible with a domain empty of particulars. In Chapter 6, I critically discuss what the ontology of logical atomism should be, that is, what the ontology of the logical atomist's logic must be. This includes an ontology of logical concepts and of logical forms as completely-general, necessarily-existing logical facts with no constituents. I conclude by indicating avenues for new work on logical atomism. (shrink)

I argue that to know that a proposition is true one must have justification for being certain that the proposition is true. That is, one must have infallible epistemic justification for believing the proposition. It is widely accepted among epistemologists that we rarely, if ever, have such strong justification for our beliefs. It follows that there is precious little that we know. That conclusion is unacceptable to many philosophers. I argue that the positions that lead to the skeptical conclusion are (...) well-motivated and that the skeptical conclusion is implicitly accepted by ordinary speakers. My dissertation has three main components: a metaphilosophical position, an epistemological position, and an error theory. First, the metaphilosophical position. One very important part of philosophy is the analysis of our ordinary concepts. Analysis of our concepts begins with reflecting on what we are inclined to say about various actual and possible cases when considered under specific descriptions. This traditional method has recently come under attack, due in part to the rise of semantic externalism. I agree with externalists that if ‘meaning is reference’ then there is little reason to think reflecting on our concepts from the armchair will provide insight to the nature of the concepts we investigate. I defend a version of semantic internalism which grounds meaning in factors with which subjects are directly acquainted. That view supports the traditional methodology. Furthermore, as the goal of philosophical analysis is to accurately describe concepts of philosophical interest, the only kind of objection that could be decisive against a proposed analysis is that it does not correctly describe our concept. That opens the door to a skeptical analysis of knowledge. Second, the epistemological position. I argue that the unacceptability of sentences of the form “S knows that p but it is possible for S that not-p” is best explained by the hypothesis that our concept of knowledge requires having justification for being certain that what one believes is true. I offer as a criterion of justified certainty the idea that when one knows a proposition is true, one is in a position to decisively answer questions about one’s knowledge of that proposition. I survey a number of competing theories of knowledge and show that they allow for the possibility of knowledge when one fails my criterion of decisive answerability. Those views fail my criterion because according to those views there is nothing the subject is aware of that guarantees for the subject that the allegedly known proposition is true. On that basis, I contend that knowledge is direct awareness of the factors that constitute the truth of the proposition one believes. Third, the error theory. Of course, we rarely have direct awareness of the factors that constitute the truth of the propositions we believe. So, our knowledge attributions are generally false. Yet, they are overwhelmingly natural to make. I argue that competent speakers are often quick to recognize knowledge attributions as a kind of ‘loose talk’ akin to the way we loosely ascribe geometric properties to ordinary objects. We regularly call objects ‘square’ that are not even close to being square, and we are quick to recognize this when challenged. I argue that we do this because we are so accustomed to communicating using strict language to make false claims that we often do not attend to the literal falsity of what we are saying. While we accept very demanding standards for knowledge, the phenomenon of recognizing that our knowledge claims are regularly false is as pervasive as our use of loose speech. (shrink)

I argue that, if God exists, moral facts ontologically depend on him. After distinguishing a variety of ways in which moral facts might ontologically depend on God, I focus my attention on the most prominent and most well-developed account of the relationship between God and morality viz., the account developed by Robert Adams in his Finite and Infinite Goods. Adams’ account consists of two parts—an account of deontic moral properties and an account of axiological moral properties. Adams’ account of deontic (...) moral properties is a version of divine command theory according to which the property of being morally right and the property of being morally wrong are identical to the property of being commanded by God and the property of being forbidden by God, respectively. I argue that although Adams’ divine command theory is not vulnerable to many prominent objections that afflict other versions of divine command theory, his view is, nevertheless, both unmotivated and implausible. Next, I explain Adams’ account of axiological properties, which is a particular version of what I call “theistic valuational particularism.” According to Adams’ theistic valuational particularism, the property of being intrinsically good or excellent is identical to the property of faithfully and holistically resembling God. I argue that because Adams’ conception of excellence is so broad, there are some things that have the property of being excellent but fail to resemble God. I argue that the same problem afflicts other, modified versions of theistic valuational particularism, including one that is defended by Scott Hill and another that is championed by Mark Murphy. Nevertheless, I argue that this problem does not afflict what I call “theistic moral valuational particularism,” the view that moral goodness is identical to the property of resembling God in certain, specified ways. Furthermore, I argue that, if God exists, theistic moral valuational particularism is not only well motivated theologically, but it can withstand the two most prominent objections that have been lodged against it, viz., the arbitrariness objection and the divine ascription problem. (shrink)

A key issue concerning the views of Spinoza is whether he is a necessitarian or if he allows for the existence of possibilities. Commentators on Spinoza agree that his metaphysics revolve around, at the very least, a deterministic universe in which the laws of nature, together with all preceding causes, determine everything that occurs. There is also agreement that Spinoza does allow for doxastic possibility, which involves humans being able to imagine different outcomes based on inadequate knowledge of preceding causes. (...) For instance, humans can imagine a particular car existing or not existing. The divide among commentators occurs over the issue of whether Spinoza is a necessitarian or not. For instance, consider the existence of a black car. If Spinoza is a necessitarian, then the car could not be any color other than black; otherwise, the car could have been a different color. Due to Spinoza’s acceptance of a universe based on deterministic laws, the entire causal order would have to be different in order to produce the car in a different color. A major focus of this study, therefore, will be on whether Spinoza allows that the entire causal order could have been different. Views supporting a necessitarian interpretation of Spinoza, those of Garrett and Koistinen, will be examined as well as views supporting a possibilist interpretation of Spinoza, those of Curley and Walski, and Miller. The views of these five commentators will be examined in an attempt to determine their plausibility in regard to Spinoza’s writings as well as their plausibility in regard to the consistency of their arguments. In order to simplify the task of examining the allowance of possibilities other than doxastic in Spinoza’s metaphysics, this study will focus on Miller’s view of nomological possibility. Nomological possibility involves everything that is consistent with the laws of nature when the laws of nature are considered separately from the actual causal order. In the course of this study the shortcomings of the views defending standard necessitarianism will be demonstrated; the problems of the views espousing the allowance of nomological possibilities will also be demonstrated. A major shortcoming of the necessitarian views involves the plausibility of including one particular causal order within God’s essence, while a major shortcoming of the possibilist views will be their inability to handle the parallelism doctrine that Spinoza holds. A major aim of this study is to demonstrate that nomological possibility, when combined with IP17 in the Ethics, yields a result in which all the things consistent with the laws of nature end up actually existing. IP17 declares that “God creates everything that He understands.” If God understands everything consistent with the laws of nature, then He creates everything consistent with the laws of nature. The hybrid view, which is termed “super necessitarianism,” will be examined to sketch a way that it could fit into Spinoza’s metaphysics. The view of super necessitarianism will be considered in three variations, those of eternal, expansive, and concentrated. Eternal super necessitarianism involves all the things consistent with the laws of nature being created over the vast spans of time, while expansive super necessitarianism involves all the things being created over the vast universe. Concentrated super necessitarianism involves all the things being created within the same finite mode but expressed through different attributes. The choice will be made as to which of the three variations of super necessitarianism is most plausible, and finally it will be shown how super necessitarianism avoids some of the problems inherent in the necessitarian and possibilist views. (shrink)

This essay purports to be a “negative” defense of acquaintance foundationalism. It is “negative” in that I do not do much in the way of advancing novel argument for the position, nor do I extend the position very much. Rather, I focus on demonstrating that the position has the resources to overcome objections that have been proposed to it. In particular, I argue that it can overcome the dilemma proposed by Wilfrid Sellars and developed by Laurence BonJour against foundationalism, as (...) well as dilemmas proposed by Jack Lyons and Michael Bergmann targeting internalism. Acquaintance foundationalism is what I will call any theory of justification that is internalist in what may justify us, foundationalist in the structure of justification, and relies on the concept of acquaintance in justifying our basic beliefs. Internalism requires that what justifies us improves the belief from the perspective of the believing subject. Foundationalism states that the justification for all beliefs depends ultimately on basic beliefs. Finally, acquaintance is a relation between a person and other things such that these other things are before the “mind’s eye” of the subject. The general idea behind each of these dilemmas, so I will argue, is to claim that acquaintance foundationalism cannot provide epistemic reasons for basic beliefs, where epistemic reason means something that contributes to justification from the subject’s perspective. Each dilemma will ask whether the alleged justifier has some feature x. However, each dilemma contends that, whether the alleged has the feature x or not, it cannot serve as an epistemic reason. For example, BonJour will ask whether our allegedly basic beliefs are cognitive or not. He argues that if they are cognitive, they need justification, but if they are not cognitive, they cannot provide justification. Thus, no allegedly basic belief can serve as an epistemic reason. I argue that the notion of acquaintance allows us to escape such dilemmas because our states of acquaintance allow us to justify our basic beliefs without requiring justification themselves. I do so by borrowing, in part, Richard Fumerton’s theory of non-inferential justification, plus adding on a few epicycles to allow us to base our basic beliefs on our acquaintances. The first chapter sets up the issues of the dissertation: it gives context to the project, defines acquaintance foundationalism and epistemic reason, and discusses our dilemmas in broad outline. It also summarizes the rest of the essay. I use epistemic reasons in a specialized sense in the dissertation, which necessitates an extended discussion. This is the focus of chapter two. I argue that an epistemic reason is a mental complex that consists of Fumertonian acquaintances. When we have an epistemic reason, we have a mental complex that is related in the appropriate way to a belief. This is just what provides justification for the belief. This chapter explicates this notion. It includes an extended discussion of Richard Fumerton’s theory of non-inferential justification, which I follow in outline but diverge from in detail. This discussion focuses on his notion of acquaintance, and the items with which we may be acquainted. I then move to a discussion of the metaphysics of epistemic reasons, explaining how they consist of these acquaintances. I also discuss the relationship between epistemic reasons and epistemic justification. The third chapter is historical in focus. I examine Sellars’s famous dilemma for foundationalism, and contend that it can be best understood as an attempt to deny the foundationalist epistemic reasons for his beliefs. I also examine Laurence BonJour’s later formulation of the Sellarsian dilemma, and again argue that it is best understood as denying epistemic reasons to foundationalists. I then review the options that an acquaintance foundationalist has to respond to these dilemmas, as these responses will allow us to see where our more recent dilemmas go wrong. Chapter four address Jack Lyons’s dilemma. I consider what Lyons says about his dilemma at some length. I then argue that it is structurally similar to the Sellarsian dilemma, and tries to undermine the internalist’s ability to offer epistemic reasons for his beliefs. I then argue that Lyons’s dilemma only seems persuasive because he misunderstands what is required for experience to provide us with an epistemic reason. When properly understood, his dilemma fails to tell against the acquaintance foundationalism. I also argue that Lyons’s version of externalism is much more radical than it might initially appear, helping to motivate acquaintance foundationalism. The fifth chapter focuses on Michael Bergmann. I give his dilemma an extended discussion, which I follow up by reframing it in terms of epistemic reasons. I argue that his dilemma, while seemingly persuasive, fails to trouble the acquaintance foundationalism. I argue that we may be strongly aware of our epistemic reasons without starting a regress, which vitiates his dilemma. I conclude with some short remarks on possibility of skepticism. (shrink)

In this dissertation I consider the problem of external world skepticism and attempts at providing an argument to the best explanation against it. In chapter one I consider several different ways of formulating the crucial skeptical argument, settling on an argument that centers on the question of whether we're justified in believing propositions about the external world. I then consider and reject several options for getting around this issue which I take to be inadequate. I finally conclude that the best (...) option available to us at the moment is to argue that the antiskeptical view is the best explanation of our ordinary experiences In chapter two I argue that, if we hope to ground what counts as defending antiskepticism in common sense, there is an argument against the possibility of ever knowing one has succeeded in defending antiskepticism. After showing that common sense is no place to look in setting a goal for our antiskeptical project, I present the view that what will be crucial to settling on our antiskeptical goal is coming to a successful analysis of the nature of physical objects. I suggest some minimal criteria that must be met by a view in order to be antiskeptical based on our intuitions about core skeptical cases, but acknowledge that a fully successful response to external world skepticism will require the antiskeptic to engage in some much more difficult analysis. In chapter three I consider various views of the nature of explanation and conclude, tentatively, that explanation as it interests the antiskeptic is fundamentally causal. In chapter four I consider and reject some of the core views on which best explanation facts are so fundamental that a project of attempting to vindicate probabilistically the virtues which make explanations epistemically good. In this chapter I show that views which analyze justification in terms of best explanation factors fail. In chapter five I attempt to vindicate the various explanatory virtues probabilistically. In doing so I attempt to express or translate the various explanatory virtues in terms of probabilities in order to show that having those virtues makes a view at least prima facie more probable. In chapters six and seven I explain and evaluate the various arguments to the best explanation against skepticism present in current philosophical literature. I attempt to show that extant arguments fail to appreciate the virtues possessed by classical skeptical scenarios. In chapter eight I briefly consider some options that may be open to the antiskeptic moving forward. All routes forward contain considerable obstacles, but there are some fruitful areas of research to pursue. (shrink)

In this dissertation, I argue for a set of interpretations regarding the relationship between moral obligation and reasons for acting in the theories of Hobbes, Hutcheson, and Hume. Several commentators have noted affinities between these naturalist moral theories and contemporary ethical internalism. I argue that attempts to locate internalist theses in these figures are not entirely successful in any clear way. I follow Stephen Darwall's suggestion that addressing the question “why be moral?” is one of the fundamental problems of modern (...) moral philosophy. Since, as some have argued, there is a tension between accepting internalism and providing an adequate response to the “why be moral” question, I argue that each figure maintains a distinctive response to this question given the sort of internalism, if any, he would accept. In the introduction, I provide the key distinctions that arise from contemporary discussions of ethical internalism, and I motivate my project of looking for insight into the relationship between internalism and amoralism in the British Moralists. Chapters 1 and 2 focus on the moral theory Hobbes who, I argue, would accept a version of constitutive existence internalism because he holds that there is a necessary connection between one's being contractually obligated and one's being in certain rationally motivating states. I then present the fool's objection as an objection to the assumption of a relevant similarity between divine obligation and contractual obligation. I argue that, irrespective of this dissimilarity, the fool has some rational motive to keep his covenants in virtue of the fact that making covenants changes one's decision situation in such a way that it becomes reasonable to treat covenants as if they imposed categorical constraints on behavior. I claim that Hobbes's response to the fool is, at least in part, that the fool fails to understand what moral obligation consists in. In the remainder of the dissertation I turn my attention to two classical sentimentalist moral theories. I examine the theories of Hutcheson and Hume because it is not clear what resources moral sentimentalism has available to it in order to address questions about the reasonableness of moral action. In chapters 3 and 4, I develop an interpretation of Hutcheson who, because he distinguishes between exciting and justifying reasons, is able to say there is some non-derivative sense in which moral actions are reasonable. I argue that he develops a theory whereby moral obligation is to be understood in terms of the non-motivating states of approval of moral spectators, and I do not think, contrary to Darwall, that there is anything puzzling about his doing so. I argue that Hutcheson does not accept a version of motive internalism, but that he shares much in common with internalist views: he claims that there is a very strong, if contingent, connection between our states of approval and our motivational states. I offer an explanation of how Hutcheson could respond to the amoalist, which holds that we ought to be moral because, in part, we all already have the motives for and the interests in doing the sorts of things of which moral spectators approve. In chapters 5 and 6, I turn my attention to Hume who, because he makes no distinction between motivating and justifying reasons, does not seem to have anything to say about the non-derivative reasonableness of moral action. I argue that a textually grounded interpretation of Hume's theory of the passions provides us with more reason to favor an internalist reading over an externalist reading of his moral theory. Much of my argument depends on an interpretation of Hume's claim that it is possible for agents to be moved to act from a sense of duty alone. When we ask what Hume can say to the question “why be moral,” some of the options that Hutcheson pursues are initially open to him. However, I argue that Hume thinks philosophical theorizing must give way to the operations of psychological mechanisms that are causally responsible for inspiring agents to act morally by giving rise in them to particular kinds of affections. I conclude with some general remarks about the problems surrounding Darwall's interpretation of Hume's theory of justice, and use this discussion to lend further support to the claim that the actual theories of Hobbes, Hutcheson, and Hume do not neatly fit into the taxonomies that Darwall seems to think they do. (shrink)

This dissertation focuses on questions regarding the metaphysical and psychological possibility of self-deception and attempts to show that self-deception is a phenomenon best characterized as both motivated and intentional, such that self-deceivers can be held responsible for their deceptions in a stronger sense than that of being merely epistemically negligent. -/- In Chapter One, I introduce the paradoxes of self-deception, which arise when one attempts to draw a close analogy between self- and other-deception, and I discuss the various ways in (...) which one might characterize an unwarranted belief as irrational. I go on to show how the various ways one understands interpersonal deception may mirror the various accounts one might give of self-deception. I concluded the chapter with a brief discussion of the role of empirical studies in philosophical investigations of irrationality. -/- In Chapter Two, I look more closely at a particular kind of intentionalist account of self-deception, namely the claim that we must suppose the existence of a partitioned mind to make sense of the so-called "internal irrationality" of the self-deceiver. I discuss both stronger and weaker versions of this theory, in an attempt to show that it tends to raise more metaphysical worries than it solves. I argue further that if there is such a thing as divisions within the mind, an account of self-deception centered around such divisions will not get the intentionalist about self-deception what he or she wants. -/- In Chapter Three, I move on to discuss non-intentionalist accounts of self-deception. Such theories have gained in popularity in recent years, due to their appeals to explanatory parsimony. Against these theories, I argued that there are certain phenomenon we take to be central to self-deception that Mele, Barnes, et al. cannot account for. I therefore propose that a more robust account of self-deception is necessary to make sense of these phenomena. -/- Chapter Four attempts to provide such an account. I claim that if we focus more heavily on the diachronic process by which self-deceivers elicit and/or maintain their beliefs over time, what emerges looks much more like an intentional project aimed at the manipulation of one's evidence or evidential standards than a mere more-or-less unconscious process of motivated biasing. I suggest that such a view can escape the paradoxes of self-deception, while at the same time making sense of the features lacking on non-intentionalist accounts. -/- Finally, in Chapter Five I examine the morality of self-deception. I argue that self-deceivers are not only epistemically but also morally responsible for their self-deceptions, and that self-deception generally represents a moral failure on the part of the moral agent, regardless of the normative moral theory one adopts. (shrink)

Much ado has been made regarding Descartes's understanding of the creation of what he called the "eternal truths" because he described them, paradoxically, as both the free creations of God, and necessary. While there are many varying interpretations of Cartesian modality, the issue has heretofore been treated in a vacuum, as a niche issue having little import beyond being an interesting puzzle for Descartes Scholars. I argue that this treatment is misguided, and that in order to properly understand Cartesian philosophy (...) at all, one must properly understand Descartes's theory of modality. This, however, is no small feat; in order to understand Descartes's seemingly peculiar view on modality, one must first make sense of what Descartes understood the nature of God to be. One reason for this, I argue, is the systematic nature of Cartesian philosophy; indeed when dealing with a dense inter-connection of philosophical issues, one must move from what is more known in itself to what is more known to us, and not the other way around. I argue that in the literature on Cartesian modality, insufficient attention has been paid to the influence of the French School of Spirituality on the Cartesian notion of the divine. I argue that this influence pushed Descartes to criticize traditional attempts to split the horns of Plato's Euthyphro dilemma as violating a proper understanding of the doctrine of divine simplicity. Descartes's commitment to a radical form of the doctrine of divine simplicity leads him to a version of divine voluntarism wherein all `things' depend on God for their existence, and God cannot have had antecedent reason to prefer the creation of anything over anything else. There is little doubt that Descartes embraced the voluntarist horn of the Euthyphro dilemma, but just what that means for Cartesian modality and philosophy generally remains a contentious issue. I argue that Descartes is best read as what I call an `agnostic quietist' regarding God given textual, historical, and systematic considerations. One virtue of an agnostic quietist reading is that I am able to square the passages where Descartes discusses the inconceivability of God's power with the conclusions reached regarding God's non-deceiving nature in the Meditations and elsewhere. Further virtues that I explore are the effects that a quietist reading has on the Cartesian scientific programme, the infamous mind-body problem, Descartes's seemingly inconsistent view regarding human free-will and Descartes's refusal to engage in "theology." Traditionally, Cartesian epistemology has been understood to be a purely a priori undertaking, which succumbs to deep and insurmountable problems. One of the greatest problems facing the Cartesian was the move from the mind to the world. Simon Blackburn, for example, says of the Cartesian epistemological project in the Meditations that Descartes "has put himself on a desert island from which there is no escape." This view is echoed by, and even motivates some of the contemporary views concerning Cartesian modality. I argue, however, that a proper understanding of the Cartesian doctrine of clear and distinct ideas circumvents this famous problem. By highlighting the proper understanding and application of the doctrine of clear and distinct ideas, I show that such ideas not only guarantee the existence of an external truth-maker, but also that such ideas do not do much more than show that there is a truth-maker. I argue that in instances of clear and distinct perception, the truth of the idea is normatively certain, but what makes it true is yet to be established. In this way, clear and distinct ideas are both powerful, in terms of guaranteeing truth, and relatively unhelpful, in that further work is required in order to determine to what the ideas conform. I argue that this is the case not only for actual truths, but for some clearly intuited truths about possibility. As an illustration of my overall thesis, I address the Cartesian argument for the separability of mind and body, and entertain the various interpretations of Descartes's view of human freedom. I argue that in order to understand Cartesian views on either of these issues, one must first make sense of his modal commitments. In both of these cases Descartes claims that finite minds can know that something is possible, even though what makes it possible is well beyond what they can understand. (shrink)

Models of memory in cognitive science and philosophy have traditionally explained human remembering in terms of storage and retrieval. This tendency has been entrenched by reliance on computationalist explanations over the course of the twentieth century; even research programs that eschew computationalism in name, or attempt the revision of traditional models, demonstrate tacit commitment to computationalist assumptions. It is assumed that memory must be stored by means of an isomorphic trace, that memory processes must divide into conceptually distinct systems and (...) phases, and that human remembering consists in inner, cognitive processes that are implemented by distinct neural processes. This dissertation draws on recent empirical work, and on philosophical arguments from Ludwig Wittgenstein and others, to demonstrate that this latent computationalism in the study of memory is problematic, and that it can and should be eliminated. Cognitive psychologists studying memory have encountered numerous data in recent decades that belie archival models. In cognitive neuroscience, establishing the neural basis of storage and retrieval processes has proven elusive. A number of revised models on offer in memory science, that have taken these issues into account, fail to sufficiently extricate the archival framework. Several impasses in memory science are products of these underlying computationalist assumptions. Wittgenstein and other philosophers offer a number of arguments against the need for, and the efficacy of, the storage and retrieval of traces in human remembering. A study of these arguments clarifies the ways that these computationalist assumptions are presently impeding the science of memory, and provides ways forward in removing them. We can and should characterize and model human memory without invoking the storage and retrieval of traces. A range of work in connectionism, dynamical systems theory, and recent philosophical accounts of memory demonstrate how the science of memory can proceed without these assumptions, toward non-archival models of remembering. (shrink)

The aim of this dissertation is to show that, if one is committed to the scientific worldview, one is thereby committed to ethical non-naturalism. In the first chapter I offer the reader an outline of the three primary domains of ethical inquiry: normative ethics, applied ethics, and meta-ethics. I commit myself to a meta-ethical thesis--ethical non-naturalism--and contrast ethical non-naturalism with its competitors. In the second chapter I offer a cursory defense of the moral realist's semantic thesis. I offer reason to (...) think the realist has the correct semantic account and argue against the semantic accounts offered by the realist's primary opponents. In the third chapter of the dissertation I argue that commitment to the scientific worldview requires that one think that the methods of the sciences provide privileged access to facts about the external world and I offer a brief sketch of inference to the best explanation--the primary method I will employ in offering a defense of ethical non-naturalism. In the fourth chapter I develop a method for identifying non-natural properties. The method relies heavily on the predictive power that can be gained by the accurate application of predicates. In the fifth chapter I apply the method developed in the previous chapter. The results are mixed. The method fails to demonstrate that there are non-natural moral facts; however, it does demonstrate that there are non-natural normative facts. Using this result as a lemma, I identify a hypothesis--"[H]"--that, if true, would vindicate ethical non-naturalism. In the sixth chapter I rely on [H] to respond to evolutionary criticisms of ethical non-naturalism and argue that, if morality evolved, we have good reason to believe [H]. In the final chapter, I defend the view I have developed from objections arising from the existence of moral disagreement and I argue that [H] provides the best explanation of the existence of actual moral disagreement. (shrink)

One of the core issues in contemporary political philosophy is concerned with `political obligation.' Stated in an overly simplified way, the question being asked when one investigates political obligation is, "What, if anything, do citizens owe to their government and how are these obligations generated if they do exist?" The majority of political philosophers investigating this issue agree that a political obligation is a moral requirement to act in certain ways concerning political matters. Despite this agreement about the general nature (...) of what is being searched for, a broad division has arisen between political obligation theorists - there are some who take political obligations to actually exist and there are some who take there to be no general political obligation. While there is debate within the camp defending political obligation about what it is that generates the obligations, the common core of all "defender theories" is the fundamental idea that one has a moral requirement to support and obey the political institutions of one's country. Despite utilitarianism's status as one of the major ethical theories, historically, it has largely been dismissed by theorists concerned with political obligation. Within the contemporary debate it is generally accepted that utilitarianism cannot adequately accommodate a robust theory of political obligation. The overarching objective of this dissertation is to challenge this general dismissal of a utilitarian account and to build upon the two accounts which have been developed in offering a robust utilitarian theory of political obligation which can be considered a competitor to the other contemporary theories. However, as this utilitarian account of political obligation develops, the possibility will also emerge for a non-antagonistic relationship between the utilitarian theory on offer and the contemporary political obligation debate. The moral reasons posited by the traditional theories of political obligation can be included in and accommodated by my utilitarian account. The utilitarian account of political obligation can accept that there are many types of reasons explaining why broad expectations concerning individual and group behavior are created, and each type of reason can be understood as supporting the utilitarian claim that there are moral reasons for following the laws and supporting legitimate political authorities. Taken all together, my arguments will take the form of a three tiered response to the prevailing opinion that any utilitarian attempt to account for political obligations is doomed. The first tier contends that the utilitarian can consistently claim that there are moral reasons to follow the law. This is not a particularly strong claim, but it is one which has been denied by the vast majority of political theorists. The second tier of my argument addresses this apparent issue by contending that even the traditional deontological accounts of political obligation are not offering more than this. Lastly, it is contended that, given the contingent features of humans, the strength of the utilitarian political obligations is comparable to other accounts' analyses of the obligations. (shrink)

Fatigue is a difficult phenomenon to study because the response can vary based upon task-specific (i.e. contraction type, intensity, position– vs. load-matching and muscle group/joint region) and subject-specific (i.e. sex and age) variables. Although numerous investigations have provided insight into muscle fatigue, further efforts were needed to better characterize the influence of age, sex, joint/muscle group, contraction type, and task complexity have upon fatigue. The primary purpose of this series of three studies was to identify and characterize the influences of (...) potential moderating variables (i.e., sex, joint, age, contraction type, and task complexity) upon fatigue resistance during voluntary muscle contraction fatigue tasks through both empirical (systematic review and meta-analysis) and experimental methods. In general, women demonstrated either the same or better fatigue resistance than men (men never better), the sex advantage was joint specific not systematic, old men were more fatigue resistant than young men, task complexity was not an influential factor and fatigue differences were more readily apparent under isometric conditions. The inclusion of empirical and experimental methods helped clarify the driving factors of localized muscle fatigue. This in turn will better direct future study design and power for mechanistic, training and performance response studies. (shrink)

To borrow a colorful phrase from Kant, this dissertation offers a prolegomenon to any future semantic theory. The dissertation investigates Yablo's omega-liar paradox and draws the following consequence. Any semantic theory that accepts the existence of semantic objects must face Yablo's paradox. The dissertation endeavors to position Yablo's omega-liar in a role analogous to that which Russell's paradox has for the foundations of mathematics. Russell's paradox showed that if we wed mathematics to sets, then because of the many different possible (...) restrictions available for blocking the paradox, mathematics fractionates. There would be different mathematics. This is intolerable. It is similarly intolerable to have restrictions on the `objects' of Intentionality. Hence, in the light of Yablo's omega-liar, Intentionality cannot be wed to any theory of semantic objects. We ought, therefore, to think of Yablo's paradox as a natural language paradox, and as such we must accept its implications for the semantics of natural language, namely that those entities which are `meanings' must not be construed as objects. To establish our result, Yablo's paradox is examined in light of the criticisms of Priest. Priest maintains that Yablo's original omega-liar is flawed in its employment of a Tarski-style T-schema for its truth-predicate. Priest argues that the paradox is not formulable unless it employs a "satisfaction" predicate in place of its truth-predicate. Priest is mistaken. However, it will be shown that the omega-liar paradox depends essentially on the assumption of semantic objects. No formulation of the paradox is possible without this assumption. Given this, the dissertation looks at three different sorts of theories of propositions, and argues that two fail to specify a complete syntax for the Yablo sentences. Purely intensional propositions, however, are able to complete the syntax and thus generate the paradox. In the end, however, the restrictions normally associated with purely intensional propositions begin to look surprisingly like the hierarchies that Yablo sought to avoid with his paradox. The result is that while Yablo's paradox is syntactically formable within systems with formal hierarchies, it is not semantically so. (shrink)

We commonly attribute to states and other institutional organizations moral duties and obligations. For example, it is widely held that the state has a moral duty to protect its citizens from external threats and it is claimed that it ought to positively promote the welfare of its members. When we focus on the surface grammar of such institutional duty-claims, we see that they seem to differ from individual duty-claims only with respect to the subject of the claim. Whereas an institutional (...) duty-claim asserts that an institution has a duty to do some action a, an individual duty-claim asserts that a particular individual person has a duty to a. For example, we might claim that parents ought to protect their children, or that a particular person, Doe, ought to take better care of his child. Many scholars have argued or at least assumed that institutions are ultimately just collections of individuals, and hence institutional duty-claims can be analyzed in terms of claims about individuals' duties and obligations. Other scholars have rejected this reductive approach to institutional duty-claims as well as the individualist assumption upon which it is premised--viz., that institutions are nothing "over and above" individuals. Instead, it is argued that at least some institutional organizations are moral agents in their own right which have duties and obligations that are uniquely their own. According to this antireductive holist approach, at least some institutional duty-claims resist being analyzed into claims about individuals' duties and obligations. My aim in this dissertation is to clarify what is meant when we assert that the state has moral duties, and I do so by entering into dialogue with both the reductive individualist and antireductive holist views. In Chapter One I situate and motivate my project by reference to two well-known debates in which claims about the state's duties play an inescapably central role; viz., the debate concerning the propriety of using so-called "enhanced interrogation techniques" in the War on Terror and the debate surrounding the most recent reforms to the health care system here in the United States. Since my aim is to shed light on the meaning of and truth-makers for institutional duty-claims, I devote Chapter Two to the task of clarifying what we mean and imply when we advance duty-claims in what we may assume to be paradigmatic circumstances: namely, those circumstances in which an individual is said to have a duty to do something or another. I then frame the further investigation into the meaning and significance of institutional duty-claims as one which has the aim of revealing whether the phrase 'has a duty' has a univocal, analogous, or equivocal signification across institutional and individual contexts. In Chapter Three I take up the task of characterizing and distinguishing the relevant reductive individualist and antireductive holist viewpoints, considering both historically significant and contemporary versions of each. In Chapter Four I present and critically evaluate a rather influential argument in favor of institutional moral agency, which, if true, would vindicate the antireductive holist approach. I conclude that chapter by arguing that, contrary to the claims made by those who defend institutional agency, we are unjustified in believing that institutions possess those properties requisite for moral agency. Having set aside what I take to be a "best-case" for an antireductive holism, I turn, in Chapter Five, to the task of making plausible the reductive individualist approach. In doing so, I propose that some institutional duty-claims actually resist reduction to claims about individuals' duties and that such claims are thus better understood as claims about the extrinsic value of an institutional arrangement. (shrink)

This dissertation investigates the possibility of justifying simplicity principles in science. The labor of these projects is organized into three chapters. The first chapter introduces some of the key authors and issues in the history of simplicity in science. This chapter also gives a detailed discussion of the work of the 19th century physicists Le Verrier and Newcomb who played a crucial role in setting the stage for Einstein's theory of relativity. These examples are used to illustrate points in the (...) following chapters. However, they play a specific role in the first chapter to show serious problems with a view defended by an important contemporary author, Richard Swinburne, that one version of the principle of parsimony contributes to the probability that scientific theories will be true. The second chapter elucidates the problems involved in specifying and measuring the simplicity of scientific hypotheses and theories. When simplicity criteria are employed in a scientific methodology, we find that simplicity judgments of one kind are always traded-off with simplicity judgments of another kind. We also find that the scientific project involves a delicate balancing of several aims. This analysis renders a valuable result: that some dogmas, in particular, the dogma that principles of parsimony are the final court of appeal in scientific theory selection must be jettisoned. I also find that it is misguided to ask the question of whether or not simplicity of some clearly specified kind is related to the truth. In point of fact, the legitimate questions about the justification of specific simplicity judgments in science are much more complex and nuanced than this. This becomes clear when it is seen exactly how different simplicity criteria are related to one another and to the various desiderata of science. The third chapter investigates which argument forms may be available to justify simplicity principles in science. In some cases it is nonsense to ask the question of how simplicity is related to the truth. However, we can investigate the forms of various arguments that may be given to justify methodological principles involving simplicity criteria. The results from the second chapter are employed in two ways. First, methodological principles stand in a tight-knit set of interrelations, so our analysis of justificatory argument forms must incorporate the complexity of these relations. Second, simplicity is extremely heterogeneous and since no conceptual reduction of all of the various simplicity criteria is possible, justificatory arguments must deal with clusters of interrelated principles. This result may have certain advantages and other disadvantages for inductive, transcendental, or inference to the best explanation approaches to the justification of simplicity. My analysis shows what will and what will not work for these possible approaches to the question of justification and shows what some of the systematic and metaphilosophical commitments would have to be were philosophers to pursue this project. (shrink)

The intent of this thesis is to provide an account of the phenomenology of movement that collapses the distinction between mental and physical without the elimination of the mental. There are two main ways in which mental and physical converge in this account. First of all, the type of knowledge involved in learning movement skills is a type of nonpropositional knowledge that is literally embodied in the neuromuscular system of the body. Thus the mental phenomena of knowing-how and thinking how (...) to do movement skills are body-wide phenomena. Furthermore, this type of knowledge is genuinely self-referential, since the knower and known are identical. Second, the phenomenology of self-actuated movement reveals that the self is experienced as a psychophysical unity through the experience of the coherence of action and the proprioception of that action. This is due to the sense of effort provided by sensorimotor integration of the peripheral nervous system. This sense of effort is the direct awareness of physical properties of muscle lengths, tensions, and speeds of contraction, and is thus a genuine psychophysical phenomenon. It is also argued that we enjoy a high degree of epistemic security regarding experiences of this type. (shrink)

Many of our ordinary beliefs about the world around us are a result of inference from more fundamental beliefs. Foundationalists in epistemology have thought that, if these ordinary beliefs are to be rationally justified, the chain of inferential justification must terminate in a belief that is justified noninferentially. Foundationalists, of the internalist variety, have thought that the most plausible candidates for ending the regress of empirical justification are experiential states, the justifying features of which the believing subject is aware. The (...) Sellarsian dilemma, taking its name from philosopher Wilfrid Sellars, has been a persistent argument against foundationalist theories of epistemic justification. There have been various formulations of the dilemma over the years, but in its most general form it says that for any construal of an experiential state where the experiential state provides justification, the experiential state will need further justification. Sellars thought that an experience, all by itself, cannot provide justification unless we apply concepts to the experience. However, the application of concepts is judgmental and conceptual judgments, like beliefs, require further justification. So, the experiential state construed this way would perpetuate the regress it was designed to terminate. On the other hand, if the experiential state is construed such that it is not in need of justification, then it cannot itself provide justification. Both options are devastating to a foundationalist epistemology. My thesis is that a solution to all forms of the Sellarsian dilemma is to require for foundational justification direct awareness of the fit between one's conceptual judgment and the justifying experiential state. I concede that one must conceptualize one's experiential states for these states to play an epistemic role. However, I argue that conceptual judgments of this sort are the foundations. The importance of this solution is that it not only terminates the regress of justification but it also captures the primary intuitions that motivate internalism and foundationalism. This is to say that although I have framed my account as a response to the Sellarsian dilemma, it is not merely an ad hoc patch that avoids what stood as a serious problem. Instead, it is a return to what has motivated and what I take to be most persuasive about internalist foundationalism. (shrink)

In this dissertation, I develop an interpretation of Leibniz on modality and free will. I do so for two reasons: first, I am attempting to revitalize the notion that Leibniz is the predecessor of contemporary modal semantics; second, I am using Leibniz's philosophical system to motivate responses to contemporary philosophical issues in modality and free will. In Chapter One, I argue that Leibniz's basic principles are plausible theoretical tools that ought to be used by contemporary philosophers in developing their philosophical (...) systems. In Chapter Two, I develop Leibniz's views on the nature of individuals. I argue that possible individuals are actually of the same sort as individuals in the actual world--possible individuals and actual individuals are complete creatures that do not differ ontologically from each other. In Chapter Three, I argue that Leibniz's views on possible individuals make him a modal realist and compare his view with contemporary modal realism in order to support this claim. I also argue that counterparts avoid many of the problems set for them by contemporary thinkers; I end with the ways that Leibniz's view differs from contemporary accounts. In Chapter Four, I argue that Leibniz provides two different analyses of modality. The first is an infinite analysis account; the second is a possible worlds account. I argue that these two accounts are compatible and amount to two different descriptions of the same theory of modality. I address objections to each account in order to show this. In Chapter Five, I argue that Leibniz is a compatibilist about free will. Importantly, I argue that it is precisely Leibniz's account of modality that allows for this compatibilism, as against a necessitarian like Spinoza. I then use Leibniz's account to challenge contemporary libertarians about free will on the basis of the principle of sufficient reason. I also show how Leibniz can help semicompatibilism avoid a worry concerning necessitarianism. At the end of the day, I claim that adopting elements of Leibniz's system can help us better understand modality and the freedom of the will and can be an aid in furthering contemporary philosophical theory. (shrink)

Many older adults develop restrictions in the performance of activities that are essential to daily living, referred to as functional limitations. Functional limitations can lead to disability, the inability to complete tasks necessary to function in society. A better understanding of how impairments in body systems affect functional limitations and disability in older adults could lead to improved medical management of older adults. The purpose of this study was to examine how impairments in lower extremity muscle performance (strength, power, and (...) endurance) are related to functional limitations and disability in community dwelling older adults. Thirty-four subjects were recruited to participate in this cross-sectional analysis study with 30 individuals completing the study. The Keiser 420 Leg Press was used to measure impairments in lower extremity muscle performance. Functional limitations were classified through the Short Physical Performance Battery, the Six-Minute Walk Test, the Late Life Function and Disability Index (LLFDI) Functional Limitation Component, and average walking speed, average walking distance and average number of steps per day over a six-day period obtained from the AMP 331 physical activity monitor. Disability was measured through the LLFDI Disability Component Limitation Category. Regression analysis was used to examine the direct effect between impairments in muscle performance and functional limitations. Mediation analysis was used to examine the indirect effect of impairments on disability. The results of this study support a relationship between impairments in lower extremity strength and power to functional limitations and disability in community dwelling older adults. Impairments in lower extremity power consistently demonstrated a stronger relationship than strength to all measures of functional limitations and disability. The results of this study did not support a relationship of impairments in endurance to functional limitations or disability. The overall findings of this study would indicate that community dwelling older adults should focus on maintaining and improving lower extremity strength and power across a range of relative intensities in order to decrease functional limitations and disability. (shrink)

In this thesis I argue forin re structuralism in the philosophy of mathematics. In the first chapters of the thesis I argue that there is a genuine epistemic access problem for Platonism, that the semantic challenge to nominalism may be met by paraphrase strategies, and that nominalizations of scientific theories have had adequate success to blunt the force of the indispensability argument for Platonism. In the second part of the thesis I discuss the development of logicism and structuralism as methodologies (...) in the history of mathematics. The goal of this historical investigation is to lay the groundwork for distinguishing between the philosophical analysis of the content of mathematics and the analysis of the breadth and depth of results in mathematics. My central contention is that the notion of logical structure provides a context for the latter not the former. In turn, this contention leads to a rejection of ante rem structuralism in favor of in re structuralism. In the concluding part of the dissertation the philosophy of mathematical structures developed and defended in the preceding chapters is applied to the philosophy of science. (shrink)

This dissertation is a defense of a particular theory of the metaphysics of time which I call "accretivism", but which is popularly known in a form usually called the "Growing Block Theory". The goal of a metaphysics of time is to incorporate the various aspects of our temporal experience into a single, comprehensive whole. To this end I delineate five aspects of our ordinary experience of time: 1) The Tensed Aspect, in virtue of which objects are presented to us as (...) past, present, or future; 2) The Transitory Aspect, in virtue of which time passes or "flows"; 3) The Durational Aspect, in virtue of which entities have a certain temporal extent; 4) The Structural Aspect, in virtue of which entities are given as being in temporal relations to one another, and 5) The Differential-Repetitive Aspect, in virtue of which things are different from one time to another, and yet there is a certain recurrence of aspects of our experience form one time to another. I contrast the accretivist picture of time, according to which that which is past and that which is present both have ontological status, but nothing which is future has ontological status, and in which temporal passage consists in the coming-into-being of new entities at the temporal edge of reality marked by the present, with the two dominant theories of time in the contemporary literature: 1) presentism, according to which only that which is present has ontological status, and 2) four-dimensionalism, according to which time is to be understood on analogy with spatial dimensions. Accretivism, I argue, is superior to the other two views in virtue of the fact that it gives full status to both the Structural Aspect of Time, for which the presentist has difficulty accounting, and the Transitory Aspect of Time, for which the four-dimensionalist has difficulty accounting. I then defend the accretivist picture against a variety of objections that might be raised to it. (shrink)

This dissertation scrutinizes expressivist theories of first-person privilege with the aim of arriving at, first, a handful of suggestions about how a `best version' of expressivism about privilege will have to look, and second, a critical understanding of what such an approach's strengths and weaknesses will be. Roughly, expressivist approaches to the problem of privilege are characterized, first, by their emphasis on the likenesses between privileged mental state self-ascriptions and natural behavioral expressions of mentality, and second, by their insistence that (...) an acknowledgment of these likenesses is required in order properly to understand the characteristically singular privilege with which one speaks of one's own mental states. The dissertation proceeds in five chapters whose individual tasks are as follows: The first chapter sets out the definition of the phenomena of "first-person privilege" in use throughout the dissertation and defends the claim that those phenomena are indeed real and so the philosophical problem of accounting for them is indeed serious. However, there is no presupposition made against the possibility of an expressivist account of the phenomena of first-person privilege. The second chapter sets out the basic motivations informing expressivist approaches to the problem of first-person privilege. Four immediate and significant questions for the expressivist approach are set out. The chapter also considers one `simple' way of responding to those questions and set outs the most pressing difficulties for a `simple expressivism'. The third chapter sets out my view of Wittgenstein as a methodically non-theorizing philosopher, criticizes rival views and, finally, sets out my view of the Wittgensteinian responses to the four questions set out in chapter two, given my view of him as a philosophical non-theorizer. Many of the later suggestions about a `best version' of expressivism draw directly on my best understanding of Wittgenstein's own approach to the problem of first-person privilege. The fourth chapter sets out David Finkelstein's, Peter Hacker's and Dorit Bar-On's responses to the quartet of questions for expressivists about first-person privilege, while flagging a number concerns for each author's approach. The final chapter condenses and reviews the concerns already raised for the expressivist approaches already canvassed and makes a number of suggestions about the most viable expressivist options for dealing with them. With that in place, the last chapter proceeds to comment on the overall plausibility of the sketch of a `best-version' of expressivism that emerges. Also, concerns to do with the relationship between expressivism about first-person privilege, epistemological foundationalism, content externalism and the mind-body problem are discussed. (shrink)

Traditional accounts of justification can be characterized as trying to analyze justification in such a way that having a justified belief brings with it assurance of truth. The internalist offers a demanding requirement on justification: one's having a justified belief requires that one see what the belief has going for it. Externalists worry that the internalist's narrow conception of justification will lead to unacceptably radical and implausible skepticism. According to the externalist, one need not know what a belief has going (...) for it in order for that belief to be justified. Externalism, though, comes with its own problems. Ernest Sosa has attempted to bridge the divide between internalism and externalism by pairing the strengths of internalism with the strengths of externalism. Sosa distinguishes two kinds of knowledge: animal knowledge that is essentially externalist in character and reflective knowledge that is intended to capture our best intellectual procedure in regards to knowledge. On Sosa's view, one gains reflective knowledge by building upon animal knowledge. As a result, Sosa's view seems to illustrate a bottom-up approach to the analysis of knowledge : reflective knowledge is the result of animal knowledge and some other epistemic factor. My project, in contrast to Sosa's, is to argue that one should start with an account of ideal justification and then proceed by loosening the standards on ideal justification in an effort to develop the possibility of non- ideal kinds of justification. The view that I will develop will adopt Sosa's strategy of distinguishing kinds of knowledge, but will result in a top-down approach to the analysis of justification. Instead of starting with an undemanding standard and layer levels on top, I will start with an ideal standard and strip layers away. I will also argue that my view has some important advantages over Sosa's. Not only does Sosa's view seem to run into many of the problems that threaten externalism, but his view is incapable of offering the kind of assurance that the internalist is after. The view I develop will maintain the internalist's interest in assurance while also providing a response to some of the skeptical problems that have plagued internalists. If my project is successful, then, even if the justification that results in many of the cases I will be exploring is not ideal, we can use these conceptions of justification to help explicate how one might have justified beliefs about a great number of things. The essentially internalist account that I have offered will not only illustrate a serious approach to dealing with skepticism, but it will also capture how many of our commonsensically justified beliefs are in fact justified. (shrink)

In this essay, I argue for an account of property possession as strict, numerical identity. According to this account, for an entity to possess a property is for that entity to be numerically identical to that property.

Approximately 20% of the general population is affected by a vestibular disorder. Vestibular dysfunction is recognized as an important intrinsic factor leading to falls. Despite research on balance strategies with platform perturbations, limited information exists on neuromuscular performance of the knee with perturbations during functional tasks. Improved understanding of the effects of BVL on neuromuscular control of the knee will aid researchers and clinicians in developing rehabilitation programs that address the adaptations and balance deficits that occur with vestibular loss. Hence, (...) the main purpose was to examine accuracy of performance, knee muscle activation patterns and long latency responses in response to unexpected perturbations during a controlled single leg squat in healthy individuals and those with bilateral vestibular loss (BVL). The first study provided information about the ability to improve performance accuracy with perturbations based on the feedback available. It also showed concomitant changes in the LLR of quadriceps muscles with learning. In the second study, it was found that competent subjects with BVL show similar performance accuracy as healthy individuals during the SLS, with the exception of endpoint error. Muscle strategies are slightly different and vary on firm and foam surfaces. A significant finding was that the LLR is reduced in this group in response to unexpected perturbations, especially when visual feedback is absent. Rehabilitation and/or time living with bilateral vestibular deficiency can lead to a reorganization of the central nervous system, which may partly explain the alterations in neuromuscular control. More research is needed to determine the relationship between the long latency response and fall risk and if different training dosages with perturbations affect these in both healthy and vestibular-deficient populations. (shrink)

The central undertaking of this project is to initiate a phenomenological theory of musical experience. The core views expressed are that musical rhythm is the most fundamental, and the only essential, component of the musical experience, and that the essence of musical experience lies in attending to rhythm as communicative of a sense of time. In the introduction I set out the general phenomenon of musical understanding and argue for the relevance of phenomenological description of basic musical experience for the (...) theory of musical understanding. I continue this work by considering Jerrold Levinson's concatenationist view, and indicate the need for a more adequate characterization of basic musical experience. I then discuss Roger Scruton's attempt to distinguish musical from nonmusical hearing in terms of metaphorical perception and acousmatic listening and conclude that neither provides an essential characteristic of musical hearing. I present the theory and method of phenomenology and trace out what I take to be phenomenologically adequate theories of sound and auditory experience. The heart of the work explores the notion of musical time along with the nature of the experience of rhythm and meter. The first part of the final chapter contains an historical and critical overview of philosophical accounts of the connection between music and the emotions, and the related issue of whether music possesses any "content" beyond sounds and their melodic, rhythmic, and harmonic organization. The second part considers attempts to pursue a theoretical analogy between music and language. (shrink)

Traditional philosophy has been under attack from several quarters in recent years. The traditional philosopher views philosophy as an armchair discipline relying, for the most part, on reason and reflection. Some philosophers doubt the legitimacy of this type of inquiry. Their arguments usually occur along two dimensions. Some argue that the primary data source for the armchair philosopher--intuition--does not provide evidence for philosophical theories. Others argue that conceptual analysis, which is the preferred method of inquiry for armchair philosophers, can't yield (...) the results the philosopher is looking for, since concepts like 'knowledge' or 'free-will' vary from culture to culture or even between persons within a culture. Finally, some philosophers argue that we should abandon the armchair program because philosophy should be an empirical enterprise continuous with the sciences. I argue that attempts to undermine intuition fail and that one can justify the evidential status of intuition in a non-question begging way. I then argue that attacks on the belief in shared concepts do not succeed because they often conflate the nature of scientific objects with those of interest to the philosopher. However, if concepts do vary from culture to culture, I show that the philosopher need not abandon the armchair. She can still do conceptual analysis but it will be only the entry point into the philosophical dialogue. I apply this approach to epistemology arguing that the central epistemic questions ought to be the existential and the normative. This approach helps to vindicate epistemic internalism. (shrink)

When we begin to investigate the persistence of objects through time, we find immediately that the sort of concerns embodied in Leibniz's Law cause philosophers to divide themselves into the two major camps of Purdurantists and Endurantists. What is required according to each for a given object at a given time to be identified with a given object at another time is held to be dramatically different, even while both often look to the same general sort of indicators for their (...) answers to identity questions: identity or similarity of physical properties, including relational properties like spatial location. I believe, however, that logically prior to the problem of the persistence of objects through time will be questions regarding the composition of objects--we must have coherent notions of what an object is, what it means for parts to compose an object, and what is required for an object to be considered to exist at a single time before we can discuss the continued existence of objects at other times. I believe that posing the problem of temporal gaps for both the Perdurantist and Endurantist to solve can help us uncover reasonable answers to these more basic questions, and thereby help us judge the comparative coherence of the parent theories. Towards this goal, we investigate here some of the assumptions of persistence theories--that Perdurantists are four-dimensionalists and Endurantists are Presentists, for example--before moving on to find reasonable explanations of the composition of objects from within each theory. Important at this stage is clarifying such concepts as parthood and the present. When we at length turn our attention to the problem of gaps, it becomes useful to distinguish two sorts of gaps, each with their own difficulties: a 'gap' as a length of time during which the proper parts of an object are scattered through space, and a 'gap' as a length of time during which the proper parts of an object do not exist in space at all. My contention here is that Perdurantism, paired with four-dimensional spacetime, provides the most coherent answers to the challenges presented throughout. (shrink)

The problem of philosophical skepticism relates to the difficulty involved in underwriting the claim that we know anything of spatio-temporal reality. It is often claimed, in fact, that proper philosophical scrutiny reveals quite the opposite from what common sense suggests. Knowledge of external reality is thought to be even quite obviously denied to us as a result of the alleged fact that we all fail to know that certain skeptical scenarios do not obtain. A skeptical scenario is one in which (...) we have neurological occurrences just like any normal situation in which we actually perceive spatio-temporal objects, but where we are deceived in some sense as a result of the manipulation of our brains from some outside source. In this work I attempt to address the problem of philosophical skepticism by claiming that most of us are able to come to know plenty about external reality, since we can come to realize that a certain philosophical theory of perception is correct. The theory I have in mind is what I call a non-cognitive theory of perception. According to this view, perceptual experience is defined by continuous, sensitive behavioral interaction with spatio-temporal objects of the appropriate size, shape, hardness, speed, etc. Knowing that this theory of perception is correct is equivalent to knowing that we know plenty about external reality. This is ultimately because by knowing that a non-cognitive theory of perception is true, we know that any skeptical scenario must fail to obtain. The structure of the work proceeds by first discussing the significance of the problem of philosophical skepticism in some detail. Chapter 1 lays out how the problem does indeed forcefully arise if it is conceded that we fail to know that the skeptical scenarios fail to obtain. Chapter 2 develops the sort of view of our epistemological situation that falls out of accepting without qualification that the problem exists. Chapter 3 examines and criticizes certain popular responses to the skeptical problem. The main goal of these first three preliminary chapters is to indicate that once it is admitted that we fail to know that the skeptical scenarios fail to obtain, the problem of philosophical skepticism forcefully presents itself. Chapter 4, however, attacks the idea that we fail to know that the skeptical scenarios fail to obtain. In this chapter I argue that this idea is wedded to the position that a certain theory of perception is correct. The theory in question is what I call a conjunctive theory of veridical experience. According to this view, normal experience of spatio-temporal objects occurs when a subject has a certain perceptual experience, and that experience also happens to match up with and/or be satisfied by what is really the case. Only when a theory of this sort is assumed, I argue, is the claim that we fail to know that the skeptical scenarios fail to obtain found to be obvious. In chapter 5 I argue that, in fact, a non-cognitive theory, rather than a conjunctive theory, is the correct view to maintain. In the final chapter 6 I develop the epistemological position that falls out of accepting a non-cognitive theory. (shrink)

Appeals to practices are common the humanities and social sciences. They hold the potential to explain interesting or compelling similarities, insofar as similarities are distributed within a community or group. Why is it that people who fall under the same category, whether men, women, Americans, baseball players, Buddhists, feminists, white people, or others, have interesting similarities, such as similar beliefs, actions, thoughts, foibles, and failings? One attractive answer is that they engage in the same practices. They do the same things, (...) perhaps as a result of doing things at the same site or setting, or perhaps as a result of being raised in a similar way among members of the same group. In the humanities, appeals to practices often serve as a move to point out diversity among different communities or diversity within the same community. Communities are distinct from one another in part because their members do different things or do things in different ways. The distinct and varied ways in which different communities enact social norms or formulate law, state institutions, and public policy might be explicable in part by the different practices their members are socialized into. Appeals to practices hold the promise of explaining these differences in terms of the different background practices of the groups, cultivated through a kind of cultural isolation or sense of collective identity. In the social sciences, appeals to practices have played a central role in fundamental theorizing and theory building. Appeals to practices in the social sciences are often much more systematic and theoretical, forming the core of the systematic theories of Pierre Bourdieu and Anthony Giddens in Anthropology and Sociology. Practice theory has thus become a growth industry in social scientific investigation, offering the promise of a central object of investigation that explains both unity and difference within and across communities and groups. But it is unclear just what practices are and what role, both ontological and explanatory, that practices are supposed to play. The term `practices' is used to pick out a wide range of things, and its relation to other terms, from `tradition' or `paradigm' to `framework' or `presupposition', is unclear. Practices are posited as ubiquitous, yet they are difficult to isolate and pin down. We are all said to participate in them, but they remain hidden. Their role, whether causal, logical, or hermeneutical, remains mysterious. After locating the historical origins of appeals to practices in the work of Ludwig Wittgenstein and Martin Heidegger, my dissertation uses Stephen Turner's broad and systematic critique of appeals to practices to develop a new type of account. My account is a phenomenological account that treats practices as human doings that show up to people in material and social environments and make themselves available for specific responses in those environments. I argue that a phenomenological account is an effective alternative to accounts that treat practices as either shared objects with properties or shared and implicit presuppositions. I use a phenomenological account of practices to treat important debates in feminist philosophy and the philosophy of the social sciences, particularly debates over pornography's subordination of women and the classification of mental disorders in psychiatry. (shrink)

The human central nervous system (CNS) is capable of significant architectural and physiological reorganization in response to environmental stimuli. Novel sensorimotor experiences stimulate neuronal networks to modify their intrinsic excitability and spatial connectivity within and between CNS structures. Early learning-induced adaptations in the primary motor cortex are thought to serve as a priming stimulus for long term CNS reorganization underlying long-lasting changes in motor skill. Recent animal and human studies suggest that whole body exercise and core temperature elevation as systemic (...) stressors also recruit activity-dependent processes that prime the motor cortex, cerebellum, and hippocampus to process sensorimotor stimuli from the environment, enhancing overall CNS learning and performance. A primary goal of rehabilitation specialists is to evaluate and design activity-based intervention strategies that induce or enhance beneficial neuroplastic processes across the lifespan. As such, an investgation of the influence of physical, non-pharmacological interventions on cortical excitability, motor learning, and cognitive function provide the central theme of this dissertation. The first study investigated the effects of a visually-guided motor learning task on motor cortex excitability at rest and during voluntary activation measured via transcranical magnetic stimulation (TMS). Motor learning significantly increased resting cortical excitability that was not accompanied by changes in excitability as a function of voluntary muscle activation. The cortical silent period, a measure of inhibition, increased after learning and was associated with the magnitude of learning at low activation. These findings suggest that separate excitatory and inhibitory mechanisms may influence motor output as a function of learning success. The following studies investigated the influence of systemic whole-body thermal stress on motor cortex excitability, motor learning and cognitive performance. We established the reliability of a novel TMS cortical mapping procedure to study neurophysiological responses after whole-body heat stress. Heat stress significantly potentiated motor cortex excitability, though acute motor learning and cognitive test performance did not differ between subjects receiving heat stress and control subjects. Future research is needed to delineate the potential of whole body heat stress as a therapeutic modality to influence central nervous system plasticity and performance. (shrink)

In Re realism is the two-pronged view that, first, when this and that have the same color, this color and that color are identical. There is just one color, the universal. Second, on the view, this color exists just in case something has it. Say my cat has the same color as the dog I owned when I was a child. Since the dog existed before the cat, and precedence being irreflexive, it seems plausible to infer that the dog and (...) the cat are distinct. Now take the colors. Since the colors are allegedly in re, and thus perhaps somehow elements of the cat and dog, it seems plausible to infer that the dog's color also preceded the cat's color. And therefore that the cat's color cannot be identical with the dog's. Finally, since the in re realist understands the sameness of properties in terms of identity, it follows that the cat's color cannot be the same as the dog's. The problem generalizes: What is the relationship between universals and time? Ignoring the temporality of that which constitutes time, to be temporal is to have a temporal "feature." These "features" are of three kinds: precedence, times, and being present, past, etc. The fundamental question in each case is whether universals have the feature. Do universals precede? Are they at times? Are they present? Time, I argue, is essentially the field in which things happen. To happen, I argue, is for one thing to do something. For one thing to do something is for the thing to exemplify a property. Such exemplifications of properties by objects I call "states of affairs." Only states of affairs precede, are at times, or are present. Universals, not being states of affairs, are not temporal. But, by the same argument which shows that running is not temporal it can be shown that Jack is not, even though Jack's running obviously is. So far I have defined what it is to be temporal; primitive temporality. But since Jack is a constituent of something temporal, he may be justly thought of as derivatively temporal. (shrink)

Deviations from normal foot structure are thought to result in hyper or hypo mobility preventing the foot from providing sufficient stability or mobility at appropriate times during the stance phase of gait. Such deviations in foot structure are often suggested as a risk factor for the development of common foot and ankle injuries. Though foot structure is believed to influence function its effect on foot motion and mechanisms thought to allow stability during the end of stance phase remain poorly understood. (...) The purpose of this study was to determine the extent to which arch height affects foot kinematics during gait using a four segment foot model. Subjects included 17 healthy individuals with a wide range of arch heights and no past history of foot pathology. A three-dimensional motion tracking system was used to determine kinematics of the hallux, first metatarsal, forefoot, calcaneus and tibia during gait while subjects ambulated at a predetermined walking velocity of 0.78 statures/s. AP and lateral radiographs were used to determine coordinate system orientation for the first metatarsal, forefoot and calcaneus. The sagittal plane angle between the first metatarsal and calcaneus was used to represent foot structure. No association was observed between foot structure, as represented by arch height, and foot kinematics as represented by excursion or coupling during the stance phase of gait. This surprising result provides no evidence to support the assertion that foot structure influences mobility during gait in individuals without foot pathology. The kinematic patterns observed were highly consistent between individuals and provide new insight into the mechanisms underlying the formation of a rigid lever for pushoff at the end of stance phase. Supination, consisting of forefoot and first metatarsal adduction and plantarflexion along with hindfoot inversion, was found to occur at approximately 76 percent stance. Kinematic coupling associated with activation of the windlass mechanism is consistent with the concept of supination and occurs shortly after forward rotation of the first metatarsal and hallux dorsiflexion. In conclusion, deviation from normal foot structure appears to have little or no influence on foot mobility or intersegmental coupling due to activation of the windlass mechanism. (shrink)

The global intent of this research was to confirm the validity of the interpolated twitch technique (ITT) to voluntary torque model (first study) and then to utilize this technique in developing definitive criterion measures enhancing the study of training strategies on central fatigue (second study) and velocity specific (third study) voluntary activation (VA) and force production outcomes. The first study assessed the contribution of non-stimulated synergists to the non-linearity of the ITT voluntary torque relationship for elbow flexion contraction. Since multiple (...) synergist stimulation was found not to significantly improve the ITT to voluntary torque relationship, follow-up pilot work was conducted in which the quadriceps femoris was identified as a valid ITT test model muscle. The first training study investigated the effects of high volume, maximum voluntary isometric contraction (MVIC) resistance training of the quadriceps femoris on MVIC levels of force and VA prior to, during, and recovery from a standardized fatigue test protocol. Results showed significant increases in pre-fatigue MVIC VA and force, increases in resistance to early fatigue, but also increased overall rate of fatigue resulting in non-significant changes in total force volume and endurance time. Post-fatigue analysis showed significant training increases in rate and level of recovery for both MVIC VA and force production. The second training study investigated the effects of high resistance ramp versus ballistic type MVIC strength training of the quadriceps femoris on central adaptations in submaximal and maximal levels of MVIC VA and force production. Results showed similar ramp and ballistic group training increases in MVIC force and VA on both ramp and ballistic tests. Ballistic group, ballistic test change scores were significant but not for the ramp test, suggesting ballistic group test-training specificity. The ballistic group showed significant force increases on the submaximal 150ms ballistic test, while the ramp group showed non-significant training changes, further supporting test-training specificity for the ballistic group. Results support utility of the ITT and provide valuable information with regard to training and test-training specificity considerations. (shrink)

Defenders of the Knowledge Argument contend that physicalism is false because knowing all the physical truths is not sufficient to know all the truths about the world. In particular, proponents of the Knowledge Argument claim that physicalism is false because the truths about the character of conscious experience are not knowable from the complete set of physical truths. This dissertation is a defense of the Knowledge Argument. Chapter one characterizes what physicalism is and provides support for the claim that if (...) knowing all the physical truths is not sufficient to know all the truths about the world, then physicalism is false. In chapter two, I defend the claim that knowing all the physical truths is not sufficient for knowing all the truths about the world. In addition to mounting a prima facie case for the knowledge intuition, I present and defend an epistemology grounded in direct acquaintance to provide a more substantive argument to accept it. Chapters three through five address the physicalist objections to the Knowledge Argument. The first set of objections advocates that knowing all the physical truths is, in fact, sufficient for knowing all the truths about the world. The next set of objections admits that there is some sense in which knowing all the physical truths is not sufficient for knowing all the truths about the world. However, these objections maintain that the kind of knowledge that is absent from the complete set of physical truths is know-how or knowledge by acquaintance, and not factual or propositional knowledge. The final set of objections maintain that the kind of propositional knowledge that is left out of the complete set of physical truths is compatible with physicalism. My response to these objections is part of advancing my prima facie case for the Knowledge Argument. The final chapter addresses a structural question that pertains to the Knowledge Argument. Some philosophers have maintained that the structure of the Knowledge Argument invites a kind of self-refutation of any systematic account of reality. The concern is that the Knowledge Argument proves too much, and that the dualist who uses the argument to refute physicalism risks the argument defeating his own position. I will argue that the Knowledge Argument does not refute dualism. (shrink)

In my dissertation, I explore the connection between cultural membership and moral responsibility. In particular, I consider what sorts of mitigating excuses, if any, are available to perpetrators of what we take to be serious wrong action due to their unique cultural circumstances. I utilize real-life case studies, and apply various philosophical theories of moral responsibility to these examples. One such theory--offered by Susan Wolf--suggests that these "cultural defendants" may not be responsible for their participation in morally wrong practices due (...) to the possibility that they may have been rendered by their cultures unable to recognize and/or appreciate that these practices were in fact wrong. This would supposedly allow us to claim that they were not culpable for their resulting ignorance or for their morally wrong actions which resulted from acting in accordance with their beliefs. I argue that this approach to understanding the relation between moral responsibility and cultural membership is seriously flawed, and provides us with counter-intuitive results about the case studies in question. Consequently, I next examine theories of responsibility which suggest that responsibility may be mitigated not because of an alleged inability to recognize the truth, but rather due to the alleged reasonability of the beliefs of the perpetrators. Lawrence Vogel and Neil Levy offer versions of this strategy. They argue that, because certain morally wrong practices were endorsed by the societies of certain individuals, their resulting beliefs in the propriety of their actions were epistemically reasonable. It is argued that these persons should not be considered culpable for holding their actually false beliefs or for acting in accordance with them. I argue that the strategy is in many ways preferable to Wolf's inability thesis, yet it nonetheless suffers from ambiguity. The final portion of my project explores the connection between the epistemic status of a belief and a person's moral culpability for holding and acting upon it. I outline the grounds upon which the subjects in the case studies can be held morally culpable for their epistemic mistakes and for their failure to develop and exercise epistemic virtues. (shrink)

The dissertation examines the nature and epistemic implications of epistemic source circularity. An argument exhibits this type of circularity when at least one of the premises is produced by a belief source the conclusion says is legitimate, e.g. a track record argument for the legitimacy of sense perception that uses premises produced by sense perception. In chapter one I examine this and several other types of circularity, identifying relevant similarities and differences between them. In chapter two I discuss the differences (...) between internalist and externalist analyses of justification. I examine in detail foundationalist and non-foundationalist versions of internalism, and go on to consider how one might characterize externalism: either negatively, by denying particular internalist theses, or positively, in terms of a theory offering different conditions for justification. I discuss the views of reliabilist foundationalists at length. In chapter three I present the internalist objection to externalism that the latter mistakenly permit one to be justified in believing the conclusion of an epistemic source circular inference. I explain the externalists' response that it is not in virtue of their externalism that they permit epistemic source circularity but rather their foundationalism; thus, internalist foundationalists must permit epistemic source circularity as well. I evaluate the positions of several internalists, most of them explicitly foundationalists, and argue that they too cannot avoid permitting epistemic source circularity. In the final chapter I consider whether such circularity is vicious, even though both internalist and externalist foundationalists permit it. I argue that one can sustain an objection to epistemic source circularity by imposing a non-question-begging requirement on justification and explain how respecting this requirement leads one to a non-foundationalist view. I conclude by considering the objection that question-begging leads to a certain arbitrariness in belief formation that should give the foundationalist pause when it comes to determining, at the beginning of inquiry, which beliefs are justified and which are not. The dissertation is primarily concerned with making clear the possible skeptical and non-skeptical positions one can take towards epistemic source circularity. I do not argue for the truth of a particular metaepistemology. (shrink)

Obesity is a significant public health concern, with implications for the health and well being of millions of people in the United States and world. The purpose of this thesis is to explore the relationship between obesity, segment biomechanics in the form of joint stress and restricted range of motion, and cardiorespiratory fitness. In three studies, anatomical modeling using three dimensional infrared motion capture system was used to calculate joint stresses and range of motion limitations. The results are applied to (...) better understand the impact that obesity has on biomechanics, taking into consideration factors of fitness and fatigue, during walking and common rehabilitation exercises. The first study compared the biomechanical differences between ten obese and ten normal weight adults while performing squat and lunge exercises and found significant increases in lower limb moments in obese females. Increased moments suggest that obese individuals experience higher biomechanical stress than normal weight individuals and may have less flexibility in selecting movement strategies while performing basic rehabilitation exercises. The second study examined how walking, a commonly prescribed exercise to combat obesity, may impact an obese individual's joint biomechanics. While the results of this study, comparing joint stress in ten obese and ten normal weight females, did not observe significant differences between the obese and normal weight groups, stronger relationships were present between moments and VO2 max, rather than BMI, suggesting the importance of fitness in context of developing walking programs. The final study explicitly addressed the relationship between obesity, fitness and biomechanics. Walking and jogging biomechanics was reported in 30 boys and girls, aged 8-11, before and after a fatigue protocol. Hip and knee moments were moderately associated with cardiorespiratory fitness and showed significant increase after cardiorespiratory fatigue. Including measures of adiposity and strength improved the associations between fitness and moments. This thesis concludes that the relationship between biomechanics and obesity, observed in adults and children, should be understood in the larger framework of the reverse causation hypothesis. The reverse causation hypothesis describes obesity as a positive feedback loop, in which certain factors are related to obesity in a bi-directional manner: both causing, but also amplified by, the presence of excess adipose tissue. While further study is required to clarify these relationships, these associations may have implications for participation in physical activities and long-term effects on the musculoskeletal system, thus illustrating the positive feedback loop of the reverse causation hypothesis. (shrink)

Our beliefs utilize various sources: perception, memory, induction, etc. We trust these sources to provide reliable information about the world around us. My dissertation investigates how this trust could be justified. Chapter one introduces background material. I argue that justification rather than knowledge is of primary epistemological importance, discuss the internalism/externalism debate, and introduce an evidentialist thesis that provides a starting point/framework for epistemological theorizing. Chapter two introduces a puzzle concerning justification. Can a belief source provide justification absent prior justification (...) for believing it's reliable? Any answer appears to either make justifying the reliability of a source intellectually unsatisfying or all together impossible. Chapter three considers and rejects a plethora of proposed solutions to our puzzle. Investigating these solutions illustrates the need to further investigate evidence, evidence possession, and evidential support. Chapter four discusses the metaphysics of evidence. I argue that evidence always consists of a set of facts and that fact-proposition pairs stand in confirmation relations isomorphic to those holding between pairs of propositions. Chapter five argues that justification requires what I call actually connected possession of supporting evidence: a subject must be aware of supporting evidence and of the support relation itself. Chapter six argues that the relation constitutive of a set of facts being justificatory evidence is a sui generis and irreducible relation that is knowable a priori. Chapter seven begins by showing how Richard Fumerton's acquaintance theory meets the constraints on a theory of justification laid down in previous chapters. I modify the theory so as to: make room for fallible foundational justification, and allow inferential justification absent higher-order beliefs about evidential connections. Chapter eight applies the developed theory of justification to our initial puzzle. I show how my modified acquaintance theory is in a unique position to vindicate the idea that necessarily a source provides a person with justification only if she is aware of evidence for the reliability of that source. However, this awareness of evidence for a source's reliability falls short of a justified belief and thereby avoids impalement from our dilemma's skeptical horn. (shrink)