Martine Nida-Rümelin (1996) argues that color science indicates behaviorally undetectable spectrum inversion is possible and raises this possibility as an objection to functionalist accounts of visual states of color. I show that her argument does not rest solely on color science, but also on a philosophically controversial assumption, namely, that visual states of color supervene on physiological states. However, this assumption, on the part of philosophers or vision scientists, has the effect of simply ruling out certain versions of functionalism. While (...) Nida-Rümelin is quite right to search for empirical tests for claims about the nature of visual states, philosophical issues remain pivotal in determining the correctness of these claims. (shrink)

According to color subjectivism, colors are mental properties, processes, or events of visual experiences of color. I first lay out an argument for subjectivism founded on claims from visual science and show that it also relies on a philosophical assumption. I then argue that subjectivism is untenable because this view cannot provide a plausible account of color perception. I describe three versions of subjectivism, each of which combines subjectivism with a theory of perception, namely sense datum theory, adverbialism, and the (...) virtual color proposal, and argue that each version faces serious objections. Considering these three theories of perception to be exhaustive of those available to the subjectivist, I conclude that subjectivism is untenable and that the scientifically motivated argument for this view is unsound. I then offer the diagnosis that the philosophical assumption on which this argument relies is mistaken. (shrink)

How should we characterize the nature of perceptual experience? Some theorists claim that colour experiences, to take an example of perceptual experiences, have both intentional properties and properties called 'colour qualia', namely, mental qualitative properties which are what it is like to be conscious of colour. Since proponents of colour qualia hold that these mental properties cannot be explained in terms of causal relations, this position is in opposition to a functionalist characterization of colour experience.

I propose a strategy for a metaphysical reduction of perceived color, that is, an identification of perceived color with properties characterizable in non-qualitative terms. According to this strategy, a description of visual experience of color, which incorporates a description of the appearance of color, is a reference-fixing description. This strategy both takes color appearance seriously in its primary epistemic role and avoids rendering color as metaphysically mysterious. I’ll also argue that given this strategy, a plausible account of perceived color claims (...) that colors are physical properties of physical objects. (shrink)

I argue that phenomenal externalism is preferable to phenomenal internalism on the basis of externalism's explanatory power with respect to qualitative character. I argue that external qualities, namely, external physical properties that are qualitative independent of consciousness, are necessary to explain qualitative character, and that phenomenal externalism is best understood as accepting external qualities while phenomenal internalism is best understood as rejecting them. I build support for the claim that external qualities are necessary to explain qualitative character on the basis (...) of a model of color perception as a certain sort of information filter by which perceivers gain access to external qualities. (shrink)

C. L. Hardin led a recent development in the philosophical literature on color in which research from visual science is used to argue that colors are not properties of physical objects, but rather are mental processes. I defend J. J. C. Smart's physicalism, which claims that colors are physical properties of objects, against this attack. Assuming that every object has a single veridical (that is, nonillusory) color, it seems that physicalism must give a specification of veridical color in terms natural (...) to physics, independently of our interests. Hardin argues that since physicalism doesn't give us any such specification of veridical color, this view is false. However, this argument assumes a mistaken account of veridical color. I show physicalism can appeal to an alternative account, according to which veridical color is characterized in terms of favored conditions of perceptual access, independently of any specification of the physical nature of color. (shrink)

Color subjectivists claim that, despite appearances to the contrary, the world external to the mind is colorless. However, in giving an account of color perception, subjectivists about the nature of perceived color must address the nature of perceived spatial location as well. The argument here will be that subjectivists’ problems with coordinating the metaphysics of perceived color and perceived location render color perception implausibly mysterious. Consequently, some version of color realism, the view that colors are (physical, dispositional, functional, sui generis, (...) or some other) properties of physical objects, is correct. (shrink)

There has been some recent optimism that addressing the question of how we distinguish sensory modalities will help us consider whether there are limits on a scientific understanding of perceptual states. For example, Block has suggested that the way we distinguish sensory modalities indicates that perceptual states have qualia which at least resist scientific characterization. At another extreme, Keeley argues that our common-sense way of distinguishing the senses in terms of qualitative properties is misguided, and offers a scientific eliminativism about (...) common-sense modalities which avoids appeal to qualitative properties altogether. I’ll argue contrary to Keeley that qualitative properties are necessary for distinguishing senses, and contrary to Block that our common-sense distinction doesn’t indicate that perceptual states have qualia. A non-qualitative characterization of perceptual states isn’t needed to avoid the potential limit on scientific understanding imposed by qualia. (shrink)

The problem of the nature of color is typically put in terms of the following question about the intentional content of visual experiences: what’s the nature of the property we attribute to physical objects in virtue of our visual experiences of color? This problem has proven to be tenacious largely because it’s not clear what the constraints are for an answer. With no clarity about constraints, the proposed solutions range widely, the most common dividing into subjectivist views which hold that (...) attributed colors are mental properties or mental events} and a variety of realist views, which hold that colors are properties of physical objects. These realist views, in turn, divide into views that hold that attributed colors are dispositions of physical objects to produce color experiences (dispositionalism),° nondispositional relations between objects and perceivers (the relational view)," physical properties of physical objects (physicalism),‘ or sui generis properties of physical objects (primitivism and impressionism).‘ I’ll examine a proposed constraint which Mark Johnston (1992) calls Revelation. According to Revelation, the appearance of color in our ordinary visual experience provides us with unqualified access to the nature of color. While every proposal about the nature of color must take a stand on how the.. (shrink)

I examine a dispute about the nature of practical reason, and in particular moral reason, generated by Thomas Nagel's proposal of an internalist rationalism which claims we can explain motivation in terms of reason and belief alone. In opposition, Humeans contend that such explanations must also appeal to further desires. Arguments on either side of this debate typically assume that a rationalist or Humean conclusion can be reached independently of a claim about the nature of moral judgment. I'll maintain, to (...) the contrary, that a resolution of this dispute can only be achieved on the basis of such a claim. (shrink)

The understanding of the primary-secondary quality distinction has shifted focus from the mechanical philosophers’ proposal of primary qualities as explanatorily fundamental to current theorists’ proposal of secondary qualities as metaphysically perceiver dependent. The chapter critically examines this shift and current arguments to uphold the primary-secondary quality distinction on the basis of the perceiver dependence of color; one focus of the discussion is the role of qualia in these arguments. It then describes and criticizes reasons for characterizing color, smell, taste, sound, (...) and warmth and color as secondary qualities on the basis of our commonsense divisions among sensory modalities; Grice’s proposal for distinguishing among the sensory modalities is focal here. The general conclusion is that reasons for drawing the primary-secondary quality distinction are unconvincing. (shrink)

With the success of cognitive science's interdisciplinary approach to studying the mind, many theorists have taken up the strategy of appealing to science to address long standing disputes about metaphysics and the mind. In a recent case in point, philosophers and psychologists, including Robert Kane, Daniel C. Dennett, and Daniel M. Wegner, are exploring how science can be brought to bear on the debate about the problem of free will. I attempt to clarify the current debate by considering how empirical (...) research can be useful. I argue that empirical findings don't apply to one basic dimension of the problem, namely the dispute between compatibilism and incompatibilism. However, I show that empirical research can provide constraints in connection with another fundamental dimension, namely the dispute between libertarianism, which claims that indeterminacy is, in certain contexts, sufficient for freedom, and hard determinism and compatibilism, which deny this. I argue that the source of the most powerful constraint is psychological research into the accuracy of introspection. (shrink)

The early modern distinction between primary and secondary qualities continues to have a significant impact on the debate about the nature of color. An aspect of this distinction that is still influential is the idea that the mind-independence of color requires that it is a primary quality. Thus, using shape as a paradigm example of a primary quality, a longstanding strategy for determining whether color is mind-independent is to consider whether it is sufficiently similar to shape to be a primary (...) quality. However, I’ll argue that the idea that the mind-independence of color requires that it is a primary quality is mistaken, and that, to the contrary, while color is not a primary quality, it is mind-independent. I’ll propose an alternative understanding of what the mind-independence of color requires. This alternative models color perception on an information filter. According to this model, mental qualities that I’ll call media qualities are involved in color perception. The involvement of mental qualities suggests mind-independence. However, I’ll argue, their involvement is modeled after the qualities of a kind of filter that provides access to, but does not constitute, filtered qualities. (shrink)

In Ruling Passions, Simon Blackburn contends that we should reject sensibility theory because it serves to support a conservative complacency. Blackburn's strategy is attractive in that it seeks to win this metaethical dispute – which ultimately stems from a deep disagreement over antireductionism – on the basis of an uncontroversial normative consideration. Therefore, Blackburn seems to offer an easy solution to an apparently intractable debate. We will show, however, that Blackburn's argument against sensibility theory does not succeed; it is no (...) more supportive of conservative complacency than Blackburn's noncognitivism. A victory for noncognitivism cannot be so easily won. (shrink)

. Current debates concerning the concept of mental disorder involve many different philosophical issues. However, it is not always clear from these discussions how, or whether, these issues relate to one another, or in exactly what way they are important for the definition of disorder. This article aims to sort through some of the philosophical issues that arise in the current literature and provide a clarification of how these issues are related to one another and whether they are necessary for (...) defining disorder. I argue that the main concern in defining disorder, namely demarcation, is obscured by a number of these other philosophical issues and that a focus on demarcation gives us a means of placing these other issues in a clarifying context. (shrink)

This chapter examines the spectrum inversion hypothesis as an argument against certain kinds of account of what it’s like to be conscious of color. The hypothesis aims to provide a counterexample to accounts of what it’s like to be conscious of color in non-qualitative terms, as well as to accounts of what it’s like to be conscious of color in terms of the representational content of conscious visual states (which, according to some philosophers, is in turn given an account in (...) non-qualitative terms). I explain the hypothesis’s reasoning in sections 1 and 2. I then take up background issues: since the counterexample provided by the hypothesis is typically given as a possibility rather than an actuality, I briefly discuss the kind of possibility involved in section 3, and the methodologies used to evaluate the plausibility of possibilities in section 4. In section 5, I describe some general considerations that are commonly used against the spectrum inversion hypothesis. I take up attempts to support the hypothesis with findings from color science in section 6. I end with comments skeptical of both the motivation for the spectrum inversion hypothesis and the methodology used to support it. (shrink)

We initially characterize what we’ll call existence problems as problems where there is evidence that a putative entity exists and this evidence is not easily dismissed; however, the evidence is not adequate to justify the claim that the entity exists, and in particular the entity hasn’t been detected. The putative entity is elusive. We then offer a strategy for determining whether an existence problem is philosophical or scientific. According to this strategy (1) existence problems are characterized in terms of causal (...) roles, and (2) these problems are categorized as scientific or philosophical on the basis of the epistemic context of putative realizers. We argue that the first step of the strategy is necessary to avoid begging the question with regard to categorization of existence problems, and the second step categorizes existence problems on the basis of a distinction between two ways in which an entity can be elusive. This distinction between kinds of elusiveness takes as background a standard account of inference to the best explanation. Applying this strategy, we argue that the existence of a multiverse is a scientific problem. (shrink)

"The Location Problem for Color Subjectivism" response to commentators.

Martine Nida-Rümelin (1996) argues that color science indicates behaviorally undetectable spectrum inversion is possible and raises this possibility as an objection to functionalist accounts of visual states of color. I show that her argument does not rest solely on color science, but also on a philosophically controversial assumption, namely, that visual states of color supervene on physiological states. However, this assumption, on the part of philosophers or vision scientists, has the effect of simply ruling out certain versions of functionalism. While (...) Nida-Rümelin is quite right to search for empirical tests for claims about the nature of visual states, philosophical issues remain pivotal in determining the correctness of these claims. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Fact Value Dichotomy in Demarcating DisorderPatricia A. Ross (bio)Keywordsdemarcation, values, ontology, epistemologyHaving read numerous articles on the concept of mental disorder, I find it useful to approach new articles on the topic by first sketching out the conceptual framework within which each author places the problem. The goal in doing this is not merely to be able to compare ideas within a remarkably diverse discussion, but also to (...) be able to uncover any presuppositions that underlie the account, as well as assumptions necessary for the argument, which may or may not be warranted. By approaching each new offering in this way, I often find that the solutions proposed depend a great deal on these undisclosed features, and that such presuppositions and assumptions are often questionable, at best, and are sometimes simply unwarranted. Brülde's discussion of mental disorder and values provides a useful example of this method.To determine how we should draw the line between disorder and nondisorder (henceforth, I refer to this as demarcation), Brülde claims that we need to address four questions. We need to determine (1) the extent to which demarcation depends on values and the extent to which it is descriptive, (2) the kinds of values we need to make use of (aesthetic, moral, pragmatic), (3) whether there is an implicit reference to some specific evaluative standard, and (4) whether the value judgments used to demarcate are ontological or epistemological. In putting forth these questions, Brülde identifies what he takes to be the generally agreed upon claim that there are two components necessary for demarcation: a factual component and an evaluative component. These components are distinct from each other and both are necessary—the demarcation cannot be made "by objective means alone," nor is it purely evaluative. Thus, demarcation necessarily involves a distinct value component, and the answers to Brülde's four questions are intended to shed light on how values are involved in determining the evaluative component of demarcation.Working under the assumption that they are distinct, Brülde sets aside discussion of the factual component to focus on the value component. He also tables the first of his four questions (the extent to which demarcation depends on values and the extent to which it is descriptive), citing an over-abundance of literature on the matter. Having thus framed the problem, Brülde turns his full attention to questions two through four, ultimately providing us with the answer that the values needed to demarcate disorders from nondisorders are of several types; mental disorder is both implicitly and explicitly an evaluative term, as well as value laden in both the ontological and epistemic senses. This [End Page 107] framing of the problem provides us with insight into the underlying presuppositions and assumptions that lead to Brülde's conclusion.The first aspect of this framework to consider is the division of demarcation into two distinct components, and the setting aside of the factual component as distinct from, and inconsequential to, the questions concerning values. By proceeding in this way, Brülde's argument rests on the presupposition that we can, and want, to consider the value component in isolation from the factual component. This presupposition raises a number of questions. Is there nothing about the factual component that may help us in our consideration of the value component, or vice versa? Does the factual component confine what we can say or know about the value component in any way. Overall, some justification is needed for accepting that there are two distinct and independent components, as well as for believing that the factual component can be disregarded in this way.Brülde also makes the (explicit) assumption that there is some internal state or process underlying all mental disorders about which we have or will gain factual knowledge that is objective. Implicit in this is the further assumption that this knowledge (regarding internal states or processes) will be all there is to say, scientifically, about the disorder—that is, knowledge concerning internal states and processes are what will comprise the "factual component." But if we can have sociological facts and psychological facts (and I think it is... (shrink)

DNA methylation can be considered a component of epigenetic memory with a critical role during embryo development, and which undergoes dramatic reprogramming after fertilization. Though it has been a focus of research for many years, the reprogramming mechanism is still not fully understood. Recent results suggest that absence of maintenance at DNA replication is a major factor, and that there is an unexpected role for TET3-mediated oxidation of 5mC to 5hmC in guarding against de novo methylation. Base-resolution and genome-wide profiling (...) methods are enabling more comprehensive assessments of the extent to which ART might impair DNA methylation reprogramming, and which sequence elements are most vulnerable. Indeed, as we also review here, studies showing the effect of culture media, ovarian stimulation or embryo transfer on the methylation pattern of embryos emphasize the need to face ART-associated defects and search for strategies to mitigate adverse effects on the health of ART-derived children. DNA methylation, critical for embryo development, suffers significant changes after fertilization, including demethylation, remethylation and TET3-mediated oxidation of 5 mC to 5 hmC. In addition to infertility and environmental insults, ART could impact DNA methylation and ART related consequences in the offspring have been reported. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Truth Will Set You Free, or How a Troubled Philosophical Theory May Help to Understand How People Talk About Their AddictionPatricia A. Ross (bio)Keywordsveridicality of narrative, contingency of theories, belief-behavior, causal connectionConsider the following proposition: If one were to recognize the unsatisfactory implications of maintaining a certain theoretical position, one would thereby be motivated to accept a more adequate theory, which would alter one's beliefs and, in turn, (...) alter the behaviors that are based upon those beliefs. Faith in this proposition is what motivates many of us to teach. But, alas...Allison Mitchell's argument for rethinking addiction intervention—in particular, rethinking twelve-step programs—is premised on this proposition. According to her argument, addicts function with an impoverished sense of self that is reflective of a grossly simplified form of philosophical materialism. By recognizing the limitations of this philosophically unconvincing view, and by, in effect, accepting a better, more complete materialism, addicts can come to modify their self-conception. This modification is instrumental to recovery.A careful consideration of the chain of events being proposed, and the problems with it, is helpful for understanding the limitations of her argument. There are four points that I consider in turn: (1) considering narratives can tell us something about the self-conception of addicts, (2) philosophical materialism can help us to understand and explain something about an addict's self-conception and how it is inadequate, (3) this sense of self is distinct from nonusers and the way in which it is distinct helps to understand the problem of addiction, and (4) a change in self-conception with respect to materialism helps recovery and, thus, our best intervention is one based on having addicts accept a full materialist theory of the self and not a pretheoretic one. [End Page 227]With respect to the first point, it should be noted that Mitchell's overall argument does not depend on whether or not it is true that narratives of addiction tell us something veridical about the self-conception of addicts. Such narratives may simply provide us with a potential theory—a possible worlds scenario—of how addicts conceive of themselves. Mitchell points this out herself. The narratives and the interpretation that she provides of these narrative, "are meant only to highlight a certain pattern of self-expression and conception that may in fact be common in persons who use mind-altering substances; the readings do not establish any empirical matters of fact or philosophical truths, nor do they prove any conclusions about how such persons (must) express themselves or conceive their nature" (Mitchell 2006, 214).Thus, what the argument is actually concerned with are the theoretical claims about the self-conception of addicts that are garnered from these narratives. Nevertheless, because the narratives provide the starting point for Mitchell's argument, it is worth thinking carefully about the epistemic status of this body of literature. In particular, could a consideration of such literature lead us astray in our endeavors to understand how addicts might misconceive of themselves and, if so, in what way? What sort of epistemic status does this information hold?Mitchell is motivated by Wittgensteinian analyses of the relationship between thought and language. The particular idea that she employs from Wittgenstein is that every act of self-expression, whether it is verbal or written narrative, reveals something about the conceptual framework with which the author is working. Thus, one can learn about the author of a narrative—one can acquire a sense of how that individual conceives of him- or herself—by looking at the language that is employed to talk about and describe him- or herself.Mitchell enumerates some problems with this approach. She mentions that the author may fail to make his or her intended sense clear to readers; that the reader's narrative expectations determine the interpretation given to the narrative; that literary narrative may be less direct, less ordinary than everyday uses of language; and that interpreting such narrative via philosophical framework may ascribe to people positions that are more precise and sophisticated than they actually intend (p. 213).Aside from these quite serious problems, it is necessary to recognize... (shrink)

The paper seeks to show that underlying Bentham's concept of utility is a commitment to a criterion or principle of moral status distinguishing morally relevant beings from the morally irrelevant. Further, that the notion of moral status is ultimately inconsistent with Bentham's utility; that it implies something like a Kantian ethic barring the use of morally relevant beings as mere means to some other's satisfaction, an ethic which suitably interpreted may be more useful in defence of some concerns for which (...) Bentham has traditionally been cited, animal rights for example. The paper concludes by noting the history and politics of moral status and argues that the concept involves a fusion of fact and value, the empirical and the evaluative, undermining assumptions of a rigid separation of the two and the consequent essential subjectivity of the latter. (shrink)

Palmer demarcates the bounds of our understanding of color experience by symmetries in the color space. He claims that if there are symmetries, there can be functionally undetectable color transformations. However, even if there are symmetries, Palmer's support for the possibility of undetectable transformations assumes phenomenal internalism. Alternatively, phenomenal externalism eliminates Palmer's limit on our understanding of color experience.

I examine the metaphysical issue of the nature of color. I argue that there are two distinct ranges of colors, namely, physical colors, which are disjunctive monadic physical properties of physical objects, and mental colors, which are properties of neural processes. ;A pair of claims provide the motivation for subjectivist and dispositionalist proposals about the nature of color, proposals which I reject. The first claim holds that a description of colors according to our ordinary experience of color provides a specification (...) of some aspects of the nature of color. The second holds that our ordinary experience of color provides access to the nature of color. ;In chapter 1, I argue that visual experiences have mental colors, neural properties which importantly determine our color categories. However, I reject C. L. Hardin's and James A. McGilvray's arguments for the subjectivist claim that the colors we attribute to physical objects are mental colors. ;In chapter 2, I show that Paul A. Boghossian and J. David Velleman's arguments in support of subjectivism rely on the assumption that visual experience provides unqualified access to the nature of color. I argue, however, that objections to their projectivism about color perception provide strong reasons to reject subjectivism as well as their assumption that visual experience provides unqualified access to the nature of color. ;In chapters 3 and 4, I examine Mark Johnston's and Christopher Peacocke's dispositionalist proposals about the nature of physical colors, which are founded on the claim that ordinary visual experience provides access to an aspect of the nature of color. I undercut dispositionalism by rejecting their arguments for the claim that ordinary visual experience provides such access. ;In chapter 5, I show that Evan Thompson's proposal that the colors of objects are relations between properties of perceivers and objects assumes that a description of color according to our ordinary experience specifies some aspects of the nature of color. I reject this assumption by distinguishing between mental color and physical color. I conclude that rather than specifying the nature of color, descriptions of colors according to our ordinary experience merely serve to fix the reference of color terms. (shrink)

This paper assumes that there is something in the logic of the capitalist mode of production such that, in the words of Marx and Engels' Communist Manifesto, it ?must nestle everywhere, settle everywhere, establish connections everywhere,? giving a ?cosmopolitan character to production and consumption in every country.? It assumes, that is, that there is an inherent tendency in capitalism to seek to globalize. Further, it is argued that one can plausibly claim that the capitalist mode of production has succeeded, or (...) is succeeding, in globalizing against the countervailing forces of the managing state and organized labor. It is argued that this development represents, to use Marcuse's words, something like a ?closing of the universe of discourse? or a ?paralysis of criticism? and the emergence of a ?society without opposition,? but in a context, in crucial respects, fundamentally different from that analysed by Marcuse in the 1960s. (shrink)

Byrne & Hilbert (2003; henceforth B&H) do not adequately explain how it is that phenomenal colors are physical, as their physicalism claims. This explanation requires more characterization of the relationship between the epistemology and nature of color than B&H provide. With this characterization, we can see that a physicalist need not accept unknowable color facts, as B&H do.

I take issue with Saunders & van Brakel's claim that neural processes play no interesting role in determining color categorizations. I distinguish an aspect of color categorization, namely, color discrimination, from other aspects. The law of trichromacy describes conditions under which physical properties cannot be discriminated in terms of color. Trichromacy is explained by properties of neural processes.

Mark Wilson, in his 1985 paper entitled "What Is This Thing Called 'Pain'?: The Philosophy of Science Behind the Contemporary Debate," proposed an account of physicalism that departs significantly from standard approaches. One of the main points of his paper was to explain the flaws in arguments claiming that psychological properties cannot be shown to be physical because of their functional nature. However, the positive proposal that Wilson makes in this article bears further examination. I argue that it not only (...) resolves many problems that have grown up around the topic of physicalism, but that the proposal itself should make us radically rethink some important philosophical questions, especially those concerning explanation and property identification. (shrink)