A central question in neuroscience and psychology is how the mammalian brain represents the outside world and enables interaction with it. Significant progress on this question has been made in the domain of spatial cognition, where a consistent network of brain regions that represent external space has been identified in both humans and rodents. In rodents, much of the work to date has been done in situations where the animal is free to move about naturally. By contrast, the majority of (...) work carried out to date in humans is static, due to limitations imposed by traditional laboratory based imaging techniques. In recent years, significant progress has been made in bridging the gap between animal and human work by employing Virtual Reality (VR) technology to simulate aspects of real-world navigation. Despite this progress, the VR studies often fail to fully simulate important aspects of real-world navigation, where information derived from self-motion is integrated with representations of environmental features and task goals. In the current review, we provide a brief overview of animal and human imaging work to date, focusing on commonalties and differences in findings across species. Following on from this we discuss VR studies of spatial cognition, outlining limitations and developments, before introducing mobile brain imaging techniques and describe technical challenges and solutions for real-world recording. Finally, we discuss how these advances in mobile brain imaging technology, provide an unprecedented opportunity to illuminate how the brain represents complex multifaceted information during naturalistic navigation. (shrink)

This paper has two components. The first, longer component (sec. 1-6) is a critical exposition of Armstrong’s views about the metaphysics of mathematics, as they are presented in Truth and Truthmakers and Sketch for a Systematic Metaphysics. In particular, I discuss Armstrong’s views about the nature of the cardinal numbers, and his account of how modal truths are made true. In the second component of the paper (sec. 7), which is shorter and more tentative, I sketch an alternative account of (...) the metaphysics of mathematics. I suggest we insist that mathematical truths have physical truthmakers, without insisting that mathematical objects themselves are part of the physical world. (shrink)

In Writing the Book of the World, Ted Sider argues that David Lewis’s distinction between those predicates which are ‘perfectly natural’ and those which are not can be extended so that it applies to words of all semantic types. Just as there are perfectly natural predicates, there may be perfectly natural connectives, operators, singular terms and so on. According to Sider, one of our goals as metaphysicians should be to identify the perfectly natural words. Sider claims that there is (...) a perfectly natural first-order quantifier. I argue that this claim is not justified. Quine has shown that we can dispense with first-order quantifiers, by using a family of ‘predicate functors’ instead. I argue that we have no reason to think that it is the first-order quantifiers, rather than Quine’s predicate functors, which are perfectly natural. The discussion of quantification is used to provide some motivation for a general scepticism about Sider’s project. Shamik Dasgupta’s ‘generalism’ and Jason Turner’s critique of ‘ontological nihilism’ are also discussed. (shrink)

This paper has two components. The first, longer component (sec. 1-6) is a critical exposition of Armstrong's views about the metaphysics of mathematics, as they are presented in Truth and Truthmakers and Sketch for a Systematic Metaphysics. In particular, I discuss Armstrong's views about the nature of the cardinal numbers, and his account of how modal truths are made true. In the second component of the paper (sec. 7), which is shorter and more tentative, I sketch an alternative account of (...) the metaphysics of mathematics. I suggest we insist that mathematical truths have physical truthmakers, without insisting that mathematical objects themselves are part of the physical world. (shrink)

The term ‘continuous’ in real analysis wasn’t given an adequate formal definition until 1817. However, important theorems about continuity were proven long before that. How was this possible? In this paper, I introduce and refine a proposed answer to this question, derived from the work of Frank Jackson, David Lewis and other proponents of the ‘Canberra plan’. In brief, the proposal is that before 1817 the meaning of the term ‘continuous’ was determined by a number of ‘platitudes’ which had (...) some special epistemic status. (shrink)

Sense and Sensitivity explores the semantics and pragmatics of focus in natural language discourse, advancing a new account of focus sensitivity which posits a three-way distinction between different effects of focus. Makes a valuable contribution to the ongoing research in the field of focus sensitivity Discusses the features of QFC, an original theory of focus implying a new typology of focus-sensitive expressions Presents novel cross-linguistic data on focus and focus sensitivity Concludes with a case study of exclusives (like “only”), arguing (...) that the entire existing literature (reviewed in detail) has missed crucial generalizations, and that the focus sensitivity of these expressions must be understood in terms of their meaning and discourse function. (shrink)

We discuss presupposition, the phenomenon whereby speakers mark linguistically the information that is presupposed or taken for granted, rather than being part of the main propositional content of a speech act. Expressions and constructions carrying presuppositions are called “presupposition triggers”, forming a large class including definites and factive verbs. The article first introduces the range of triggers, the basic properties of presuppositions such as projection and cancellability, and the diagnostic tests used to identify them. The reader is then introducedto major (...) models of presupposition from the last 50 years, separated into three classes: Frege-Strawson derived semantic models, pragmaticmodels such as that offered by Stalnaker, and dynamic models. Finallywe discuss some of the main current issues in presupposition theory. These involve accommodation, which occurs when a hearer's knowledge state is adjusted to meet the speaker's presuppositions; presupposition failure, which occurs when a presupposition is false; the interaction between presuppositions and attitudes; and the triggering problem, i.e., the problem of explaining why presuppositions occur in the first place. (shrink)

The extremely high level of simulated violence in certain recent video games has made some people uneasy. There is a concern that something is wrong with these violent games, but, since the violence is virtual rather than real, it is difficult to specify the nature of the wrongness. Since there is no proven causal connection between video-game violence and real violence, philosophical analysis can be particularly helpful in locating potential sources of wrongness in ultra-violent video games. To this end, this (...) paper analyzes video game violence through the lens of utilitarian, Kantian, and post-modern perspectives. Through these analyses, several explanations of the wrongness in violent video games emerge. (shrink)

This essay serves as a guide for scholars, especially those in education, who want to gain a better understanding of Heidegger's essay, ‘The Question Concerning Technology’. The paper has three sections: an interpretive summary, a critical commentary, and some remarks on Heidegger scholarship in education. Since Heidegger's writing style is rather opaque, the interpretive summary serves as a map with which to navigate the essay. The critical commentary offers a careful analysis of some of the central concepts in the essay. (...) These concepts, which include bringing‐forth, challenging‐forth, and gestell, are intriguing but problematic. The problems and possibilities of these ideas are analyzed, and an overall assessment of Heidegger's ideas on technology is offered. In the final section, the work of several scholars in education is examined. Some of this work is excellent, but there is also a significant amount of confused and confusing scholarship. (shrink)

This essay serves as a guide for scholars, especially those in education, who want to gain a better understanding of Heidegger's essay, ‘The Question Concerning Technology’. The paper has three sections: an interpretive summary, a critical commentary, and some remarks on Heidegger scholarship in education. Since Heidegger's writing style is rather opaque, the interpretive summary serves as a map with which to navigate the essay. The critical commentary offers a careful analysis of some of the central concepts in the essay. (...) These concepts, which include bringing‐forth, challenging‐forth, and gestell, are intriguing but problematic. The problems and possibilities of these ideas are analyzed, and an overall assessment of Heidegger's ideas on technology is offered. In the final section, the work of several scholars in education is examined. Some of this work is excellent, but there is also a significant amount of confused and confusing scholarship. (shrink)

Van der Pijl et al outline data suggesting an alarmingly high incidence of violation of the bodily integrity of patients in labour, including episiotomies performed without patients’ consent, or over their explicit objection.1 Similar data have been reported from the USA and Canada.2 The authors appropriately conclude that explicit consent is required at the time of all invasive obstetrical procedures, including episiotomy. Commonsense adjustments to the duration and detail of consent under conditions of clinical urgency are appropriate and should be (...) familiar to any clinician involved in perinatal care, as well as non-obstetric proceduralists caring for acutely ill patients. However, complete omission of consent for any of these procedures is both disrespectful to patients’ autonomy and strongly associated with morbidity from birth-related psychosocial trauma.3–5 The true incidence of obstetrical procedures performed without patients’ consent is difficult to determine for multiple reasons, including sample selection, recall bias and patients’ reluctance to reengage with traumatic experiences; however, …. (shrink)

In January 2019 the Faculty of Philosophy of the Lomonosov Moscow State University held the round table “Problems of Consciousness: Research Opportunities.” It was dedicated to problems of interdisciplinary studies of consciousness. Many famous Russian specialists whose academic interests include consciousness, brain and mind took part in this event: K.V. Anokhin, D.I. Dubrovsky, T.V. Chernigovskaya, M.A. Piradov, A.A. Potapov, V.Y. Sergin, V.V. Vasil’ev, Z.A. Zorina and others. At the round table, the following problems were discussed: the specificity of consciousness problem, (...) its relevance in various academic disciplines, contemporary research possibilities for consciousness studies to solve the problems that specialists actually face. Much attention was paid to the problems of neurobiology, empirical research of consciousness. Nonetheless, participants showed in their speeches that the problem of consciousness is also a philosophical problem. Hence it requires thoughtful consideration of philosophers. Participants decided that to progress in solving this problem researches from various disciplines have to cooperate. (shrink)

Army Officers face increased moral pressure in modern warfare, where character judgement and ethical judgement are vital. This article reports the results of a study of 242 junior British Army officers using the Army Intermediate Concept Measure, comprising a series of professionally oriented moral dilemmas developed for the UK context. Results are suggestive of appropriate application of Army values to the dilemmas and of ethical reasoning aligning with Army excellence. The sample does slightly less well, however, for justification than for (...) action reasoning, and there are differences following initial training for infantry and artillery officers versus other branches of service. Dilemmas involving anti-torture methods and not covering up soldiers' failings generated best results compared to those requiring balance between compassion and mission, and negotiating personal relationships with military needs. Gender differences favouring women were less than those observed for other professional groups using similar measures. This research further develops a much-needed measure of ethical reasoning among junior Army officers, with potential for use among other ranks. This approach is advocated for other professional groups. (shrink)

This article defends an affirmative answer to the question indicated in its title using an approach to the Mind-Brain problem developed by the author. Thought reading is possible through deciphering the brain’s neurodynamic code for a given phenomenon of subjective reality. During the past two decades, significant results in that regard have been achieved in the area of neuroscience called “brain reading.” Using examples of these results, the author examines the problem of deciphering the brain’s codes for mental phenomena, the (...) theoretical and methodological challenges involved, and the prospects for further development related to new methods of visualizing and mapping brain activity. The article also shows the primary importance of thorough research on a wide range of social and human questions that this trend in modern neuroscience raises. (shrink)

"Scientific materialism" is one of the most influential currents in modern Anglo-American philosophy. An examination of its content and the paths that have emerged for its further evolution is of prime interest for Marxist philosophers. "Scientific materialism" was born in the fifties and has developed rapidly on many levels, signaling a sharp increase in materialist tendencies in contemporary bourgeois philosophy and an attendant intensified confrontation between materialism and idealism. This, of course, deserves especially careful attention.

An introduction to category theory as a rigorous, flexible, and coherent modeling language that can be used across the sciences. Category theory was invented in the 1940s to unify and synthesize different areas in mathematics, and it has proven remarkably successful in enabling powerful communication between disparate fields and subfields within mathematics. This book shows that category theory can be useful outside of mathematics as a rigorous, flexible, and coherent modeling language throughout the sciences. Information is inherently dynamic; the same (...) ideas can be organized and reorganized in countless ways, and the ability to translate between such organizational structures is becoming increasingly important in the sciences. Category theory offers a unifying framework for information modeling that can facilitate the translation of knowledge between disciplines. Written in an engaging and straightforward style, and assuming little background in mathematics, the book is rigorous but accessible to non-mathematicians. Using databases as an entry to category theory, it begins with sets and functions, then introduces the reader to notions that are fundamental in mathematics: monoids, groups, orders, and graphs—categories in disguise. After explaining the “big three” concepts of category theory—categories, functors, and natural transformations—the book covers other topics, including limits, colimits, functor categories, sheaves, monads, and operads. The book explains category theory by examples and exercises rather than focusing on theorems and proofs. It includes more than 300 exercises, with solutions. Category Theory for the Sciences is intended to create a bridge between the vast array of mathematical concepts used by mathematicians and the models and frameworks of such scientific disciplines as computation, neuroscience, and physics. (shrink)

In this essay, David Waddington and Noah Weeth Feinstein explore how Dewey's conception of science can help us rethink the way science is done in schools. The authors begin by contrasting a view of science that is implicitly accepted by many scientists and science educators — science as a search for truth — with Dewey's instrumentalist, technological, and nonrealist conception of science. After demonstrating that the search-for-truth conception is closely linked to some ongoing difficulties with science curricula that students (...) find particularly alienating, they then analyze some of the educational opportunities that Dewey's vision opens up. Ultimately, Waddington and Weeth Feinstein argue that Dewey offers a humble and humanistic vision of science and science education practice that captures the power of science by connecting it clearly to everyday human activities and challenges. (shrink)

In this paper the Centering model of anaphoraresolution and discourse coherence(Grosz et al. 1983, 1995)is reformulated in terms of Optimality Theory (OT)(Prince and Smolensky 1993). One version of the reformulated modelis proven to be descriptively equivalent to an earlier algorithmicstatement of Centering due to Brennan, Friedman and Pollard(1987). However, the new model is stated declaratively, and makesclearer the status of the various constraints used in the theory. Inthe second part of the paper, the model is extended, demonstratingthe advantages of the (...) OT reformulation, and capturing formallyideas originally described by Grosz, Joshi and Weinstein. Three newapplications of the extended OT Centering model are described:generation of linguistic forms from meanings, the evaluation andoptimization of extended texts, and the interpretation of accentedpronouns. (shrink)

Critics like Leonard Waks argue that video games are, at best, a dubious substitute for the rich classroom experiences that John Dewey wished to create and that, at worst, they are profoundly miseducative. Using the example of Fate of the World, a climate change simulation game, David Waddington addresses these concerns through a careful demonstration of how video games can recapture some of the lost potential of Dewey's original program of education through occupations. Not only do simulation games realize (...) most of the original goals of education through occupations, but they also solve some of the serious practical problems that Dewey's curriculum generated. Waddington concludes the essay with an analysis of Waks's critiques and some cautionary notes about why it is important to be temperate in our endorsement of educational video gaming. (shrink)

This out-of-print collection on animal rights, applied ethics, and continental philosophy includes readings by Martin Heidegger, Karin De Boer, Martha Nussbaum, David De Grazia, Giorgio Agamben, Peter Singer, Tom Regan, David Morris, Michael Thompson, Stephen Jay Gould, Sue Donaldson, Carolyn Merchant, and Jacques Derrida.

The rise in vaccine hesitancy in high-income countries has led some to recommend that certain vaccinations be made compulsory in states where they are currently voluntary. In contrast, I contend that legal coercion is generally inappropriate to address the complex social and psychological phenomenon of vaccine anxieties.

Expression of transgenes in mice, when examined with assays that can distinguish individual cells, is often found to be heterocellular, or variegated. Line‐to‐line variations in expression of a transgene may be due largely to differences in the proportion of cells in which it is expressed. Variegated silencing by centromeric heterochromatin is well described, but other factors may also affect transgene silencing in mice. Tandem arrays of transgenes themselves form heterochromatin, and some cell lineages may tend to silence transgenes because of (...) extensive facultative heterochromatin in their nuclei. The cis‐acting transcriptional control elements within a transgene inhibit silencing, and strainspecific differences in chromatin proteins may strongly influence the extent of variegation. The accessibility of multiple differentiated cell lineages in mice suggests that they may provide a tool for dissecting the role of chromatin‐mediated silencing in cell differentiation and tissue‐specific gene expression. (shrink)

In 1926, C. E. Ayres, a young assistant editor of The New Republic, had completed a draft of his first book, Science: The False Messiah. His publishers, Bobbs-Merrill, were enthusiastic but also somewhat worried—the book, which was a blistering critique of the public understanding of science, was engagingly written and eminently readable, but it was also provocative. Bobbs-Merrill were concerned that Ayres’ “very saucy” approach might damage sales, especially given that he was a complete unknown as far as the general (...) public was concerned; and in order to boost Ayres’ credibility and, hence, future sales of the book, they felt that he needed an endorsement.1 Ayres thus dutifully set about writing to his friendly .. (shrink)

One of the interesting aspects of Dewey’s early educational thought is his apparent hostility toward children’s imaginative pursuits, yet the question of why this antipathy exists remains unanswered. As will become clear, Dewey’s hostility towards imaginative activities stemmed from a broad variety of concerns. In some of his earliest work, Dewey adopted a set of anti-Romantic criticisms and used these concerns to attack what one might call “runaway” imaginative and emotional tendencies. Then, in his early educational writings, these earlier concerns (...) were augmented by several other factors, including problematic trends in progressive education, new developments in psychology, and Dewey’s own educational aims. This analysis explores the roots of these criticisms, and explains how they culminate in the stance on the imagination that Dewey eventually outlined in the early educational writings. Notably, these findings have some important implications for certain prominent contemporary critics of progressivism. (shrink)

Scholars agree that Hegel had an important influence on John Dewey's early work.1 Unfortunately, the precise nature of this influence is not always easy to discern; in his early works, Dewey mentions Hegel only rarely, and seldom refers to him. However, in his letters and in his later works, Dewey concedes that Hegel had a strong influence on his philosophy. For example, in a 1930 essay, "From Absolutism to Experimentalism," Dewey acknowledges the influence of Hegel, noting that "acquaintance with Hegel (...) has left a permanent deposit in my thinking."2This paper is dedicated to the investigation of an important but not particularly well known, connection between the work of Hegel and Dewey's early educational ideas.3 .. (shrink)

In a majority of cases observed in classrooms over the last several decades, what has gone by the name “discussion” is not discussion, but rather an interaction better known as recitation. If one sees this phenomenon as a problem, then an aspect of its resolution must be theoretical : What series of conceptual terms might we adopt such that recitation does not pass for discussion? Such a theoretical response would have to address internal and external, or subjective and intersubjective, phenomena (...) to describe what it means to participate in an interaction like discussion or recitation. Next the theory would have to explain the differences between interactions such as discussion and recitation in robust terms. Finally, these robust differences would have to prevent the “mistaking” of discussion for recitation, and vice versa. David Backer sets out to accomplish these three goals in the following essay. The theory he builds relies on a distinction between two psychological-affective states: dehiscence and melancholia. Backer argues that recitation forms a mass through melancholic introjection of a single object, while discussion forms a group that dehiscently introjects no particular object at all. The chief finding of this essay is that viewing discussion and recitation through the mass-psychological lens offers a new way to examine what kind of relations of influence and power form during classroom discourse and, specifically, the political significance of those discourses. (shrink)

Economic models of addiction are choice-based. These models push the choice paradigm too far by modeling addiction as rational, normative behavior. Heyman's target article provides a sensible alternative to this economic approach by emphasizing that addiction is characterized by ambivalence and a perceived loss of self control. However, matching may not be a satisfactory platform on which to build this alternative model. Matching experiments do not provide evidence of ambivalence or perceived loss of self control.