Recent work suggests that people predict how objects interact in a manner consistent with Newtonian physics, but with additional uncertainty. However, the sources of uncertainty have not been examined. In this study, we measure perceptual noise in initial conditions and stochasticity in the physical model used to make predictions. Participants predicted the trajectory of a moving object through occluded motion and bounces, and we compared their behavior to an ideal observer model. We found that human judgments cannot be captured by (...) simple heuristics and must incorporate noisy dynamics. Moreover, these judgments are biased consistently with a prior expectation on object destinations, suggesting that people use simple expectations about outcomes to compensate for uncertainty about their physical models. (shrink)

The COVID‐19 pandemic has reinforced the critical role of ethics and community engagement in designing and conducting clinical research during infectious disease outbreaks where no vaccine or treatment already exists. In reviewing current practices across Africa, we distinguish between three distinct roles for community engagement in clinical research that are often conflated: 1) the importance of community engagement for identifying and honouring cultural sensitivities; 2) the importance of recognising the socio‐political context in which the research is proposed; and 3) the (...) importance of understanding what is in the interest of communities recruited to research according to their own views and values. By making these distinctions, we show that current practice of clinical research could draw on anthropology in ways which are sometimes unnecessary to solicit local cultural values, overlook the importance of socio‐political contexts and wider societal structures within which it works, potentially serving to reinforce unjust political or social regimes, and threaten to cast doubt on the trustworthiness of the research. We argue that more discerning anthropological engagement as well as wider collaboration with other social scientists and those working in the humanities is urgently needed to improve the ethics of current biomedical and pharmaceutical research practice in Africa. (shrink)

Like most domains of science, the study of the mind has been tackled at many scales of analysis, from the behavior of large groups of people, to the diffusion of ions across cellular membranes. At each of these scales, researchers often believe that the critical phenomena of interest, and the most powerful explanatory constructs and mechanisms, reside at their scale of analysis, with finer scales argued to be incapable of predicting the interesting phenomena, while coarser scales are purported to miss (...) critical mechanistic subtleties. Here we argue by analogy that, for better or worse, researchers at all scales are correct: phenomena at each scale of analysis are intractable from other scales; thus, while reductionism is a useful scientific goal, it will not obviate the need for macroscopic research, constructs, and formalisms. (shrink)

Establishing reasonable, prior distributions remains a significant obstacle for the construction of probabilistic expert systems. Human assessment of chance is often relied upon for this purpose, but this has the drawback of being inconsistent with axioms of probability. This article advances a method for extracting a coherent distribution of probability from human judgment. The method is based on a psychological model of probabilistic reasoning, followed by a correction phase using linear programming.

Most emotion theories recognise the importance of the body in expressing and constructing emotions. Focusing beyond the face, the present research adds needed empirical data on the effect of static full body postures on positive/negative affect. In Studies 1 (N = 110) and 2 (N = 79), using a bodily feedback paradigm, we manipulated postures to test causal effects on affective and physiological responses to emotionally ambiguous music. Across both studies among U.S. participants, we find the strongest support for an (...) effect of bodily postures that are expansive and oriented upward on positive affect. In addition, an expansive and upward pose also led to greater cardiac vagal reactivity but these changes in parasympathetic activity were not related to affective changes (Study 2). In line with embodied theories, these results provide additional support for the role of postural input in constructing affect. Discussion highlights the relevance of these findings for the study of religious practices during which the postures studied are often adopted. (shrink)

Socializing Metaphysics supplies diverse answers to the basic questions of social metaphysics, from a broad array of voices. It will interest all philosophers and social scientists concerned with mind, action, or the foundations of social theory.

We estimate that 208,000 deep brain stimulation (DBS) devices have been implanted to address neurological and neuropsychiatric disorders worldwide. DBS Think Tank presenters pooled data and determined that DBS expanded in its scope and has been applied to multiple brain disorders in an effort to modulate neural circuitry. The DBS Think Tank was founded in 2012 providing a space where clinicians, engineers, researchers from industry and academia discuss current and emerging DBS technologies and logistical and ethical issues facing the field. (...) The emphasis is on cutting edge research and collaboration aimed to advance the DBS field. The Eighth Annual DBS Think Tank was held virtually on September 1 and 2, 2020 (Zoom Video Communications) due to restrictions related to the COVID-19 pandemic. The meeting focused on advances in: (1) optogenetics as a tool for comprehending neurobiology of diseases and on optogenetically-inspired DBS, (2) cutting edge of emerging DBS technologies, (3) ethical issues affecting DBS research and access to care, (4) neuromodulatory approaches for depression, (5) advancing novel hardware, software and imaging methodologies, (6) use of neurophysiological signals in adaptive neurostimulation, and (7) use of more advanced technologies to improve DBS clinical outcomes. There were 178 attendees who participated in a DBS Think Tank survey, which revealed the expansion of DBS into several indications such as obesity, post-traumatic stress disorder, addiction and Alzheimer’s disease. This proceedings summarizes the advances discussed at the Eighth Annual DBS Think Tank. (shrink)

There is a long-running debate as to whether privacy is a matter of control or access. This has become more important following revelations made by Edward Snowden in 2013 regarding the collection of vast swathes of data from the Internet by signals intelligence agencies such as NSA and GCHQ. The nature of this collection is such that if the control account is correct then there has been a significant invasion of people's privacy. If, though, the access account is correct (...) then there has not been an invasion of privacy on the scale suggested by the control account. I argue that the control account of privacy is mistaken. However, the consequences of this are not that the seizing control of personal information is unproblematic. I argue that the control account, while mistaken, seems plausible for two reasons. The first is that a loss of control over my information entails harm to the rights and interests that privacy protects. The second is that a loss of control over my information increases the risk that my information will be accessed and that my privacy will be violated. Seizing control of another's information is therefore harmful, even though it may not entail a violation of privacy. Indeed, seizing control of another's information may be more harmful than actually violating their privacy. (shrink)

According to H.L.A. Hart's analysis, to utter an internal legal statement is partly to express an acceptance of a set of norms. This article attempts to defend Hart's conception of internal legal discourse by responding to the following three lines of criticism that can be found in Joseph Raz's writings: (i) that Hart's analysis fails to account for what Raz calls ‘detached legal statements’; (ii) that Hart's deployment of the notion of acceptance in his analysis vitiates his legal positivist project (...) because such acceptance necessarily amounts to moral endorsement; and (iii) that Hart is wrong to assume that normative practices, including discursive legal practices, can be characterized satisfactorily by deploying only descriptive statements. I argue that Hart's theory, or at least a theory along the lines that Hart developed, has sufficient resources to handle satisfactorily these criticisms. His world is a noonday world in which sharply outlined figures, most of them more than a little singular, act in describable ways against perceptible backgrounds. Clifford Geertz, speaking of Sir Edward Evan Evans-Pritchard. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:ENVIRONMENTAL THEOLOGYA REVIEW DISCUSSION* KEVIN W. IRWIN The Catholic University ofAmerica Washington, D.C. l UST OVER a decade ago the Norwegian philosopher Arne Naess coined the term deep ecology to encapsulate his challenge that while others have dealt with short-term views of ure and ways of dealing with the ecological crisis,1 he urged a deeper probing of "why, how and where" educational systems, religious bodies, and societies themselves (...) can deal with environ- * The books under discussion are: Leonardo Boff, Ecologia, Mundializacao, Espiritualidade (Sao Paolo: Editora Atica, 1993), English translation by John Cuming, Ecology and Liberation: A New Paradigm (Maryknoll: Orbis, 1995); Denis Edwards, Jesus the Wisdom ofGod: An Ecological Theology (Maryknoll: Orbis, 1995); Catharina J. M. Halkes, New Creation: Christian Feminism and the Renewal ofthe Earth, trans. C. Romanik (Louisville: Westminster/John Knox Press, 1991); Michael J. Himes and Kenneth R. Himes, Fullness of Faith: The Public Significance of Theology (New York/Mahwah: Paulist Press, 1993), especially chapter 5, "Creation and an Environmental Ethic"; Tony Kelly, An Expanding Theology: Faith in a World of Connections (Newtowne: E. J. Dwyer, 1993); Richard N. Fragomeni and John T. Pawlikowski, eds., The Ecological Challenge: Ethical, Liturgical and Spiritual Responses (Collegeville: The Liturgical Press, 1994); Albert J. LaChance and John E. Carroll, eds., Embracing Earth: Catholi.c Approaches to Ecology (Maryknoll: Orbis, 1994); Sean McDonagh, The Greening ofthe Church (London: G. Chapman; Maryknoll: Orbis, 1990); and Passion for the Earth: The Christian Vocation to Promote Justice, Peace and the Integrity ofCreation (London: G. Chapman; Maryknoll: Orbis, 1994). 1 From the outset it is important to clarify terminology and to indicate the meaning of some terms used in this review. In accord with common usage we understand that the term "ecology" (from the Greek oikos, "home") refers to our being at home on the earth, and "ecological crisis" refers to the destruction that has been worked to make the earth/home less inhabitable for a variety of species. "Creation" refers to the whole created world and all living beings as gifts from God the creator. "Environment" refers to the life context in which we live, our habitat as given to us by God and for which we are responsible. 301 302 KEVIN W. IRWIN mental deterioration and devastation.2 That Roman Catholicism has an important contribution to make to this issue3 is clear from recent magisterial statements as well as from the theological literature under review here. For example, in 1990 John Paul II articulated a number of avenues from within the Catholic tradition that relate to the ecological crisis and the Church's corporate responsibility to face it theologically, spiritually, and practically.4 In 1991 the U.S. bishops issued a more focused document, Renewing the Earth, which was drawn largely from the Church's social teaching tradition.5 The purpose of this article is to review some recent Roman Catholic theological literature in English (originally or recently translated) on environmental theology and ethics that can be understood as deep ecology from within mainstream Catholic thought. The contention of these authors is that the ecological crisis is a matter of theology, ethics, and values. Not surprisingly, given the comparative infancy of Catholicism's theological contribution to this issue, these works include collections of essays with a variety of approaches of varying quality, monographs that deal with the issue with greater methodological pre2 "Intuition, Intrinsic Value, and Deep Ecology," The Ecologist 14 (Sept./Oct., 1984): 56 ; also see Devall Bill and George Sessions, Deep Ecology (Layton, Utah: Gibbs Smith, 1985). 3 It is important to note that other Christian faith traditions have offered pertinent and challenging statements on this issue, especially the Orthodox. See, for example, the statement by Patriarch Dimitrios, Orthodoxy and the Ecological Crisis (Geneva: Ecumenical Patriarchate, 1990). 4 See "Peace with God the Creator, Peace with All of Creation," Origins 19 (Dec. 14, 1989): 465-68. This is but one example of John Paul's voice on this issue, which is not univocal. Among other statements, his 1993 Lenten Message is particularly interesting in the way it addresses the devastation caused by "uncontrolled industrial development and the use of technologies which disrupt the balance of nature [that] have caused... (shrink)

Feminist theorist and educator, bell hooks, asserts that to seek true liberation one must choose marginality. One must choose to occupy the space outside the binary between colonizer-colonized, hegemonic center-periphery, and us-them in order to create a location of possibility. This essay will reveal the practice of social justice as the navigation of the space that difference makes and argue that choosing marginality provides a framework for health humanities work towards social justice in health care. The space of the launderette (...) that is depicted in Hanif Kureishi’s 1986 film, My Beautiful Laundrette, provides an example of choosing marginality and illustrates how difference structures both real and imagined spaces, which influences how individuals ultimately perceive one another. We will draw from the work of bell hooks; political geographer, Edward Soja; and Marxist philosopher, Henri Lefebvre, to demonstrate the importance of the health humanities’ position at the margin to traditional health care education. -/- . (shrink)

We argue that for theorists with a post-institutional conception of property, e.g., Rawlsians, there is no principled reason to limit the domain of distributive justice to tax and transfer-both tax policy and the rules of the private law are constructed in service to distributive aims. Such theorists cannot maintain a commitment to a normative conception of private law independent of their overarching distributive principles. In contrast, theorists with a pre-institutional conception of property can derive the private law from sectors of (...) morality independent of distributive justice. Nevertheless, we argue, this does not entail that the private law, for pre-institutional theorists, must be sanitized of equity-oriented values. Non-libertarian pre-institutional theorists holding principled commitments to equity-oriented values are free to invoke either tax and transfer or the rules of the private law to attain them. Footnotesa We are grateful to John G. Bennett, Harry Dolan, Edward McCaffery, and Ellen Frankel Paul for written comments on a previous draft and to Eric Mack, Fred Miller, Jeffrey Paul, A. John Simmons, and the other contributors to this volume for valuable discussions. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 39.2 (2003) 302-303 [Access article in PDF] Sedgwick, Sally, ed. The Reception of Kant's Critical Philosophy: Fichte, Schelling, and Hegel. New York: Cambridge University Press, 2000. Pp. x + 338. Cloth, $59.95. This collection consists almost entirely of papers from a 1995 conference at Dartmouth on "The Idea of a System of Transcendental Idealism in Kant, Fichte, Schelling, and Hegel." Four categories of (...) papers address: (1) the relation between Kant's three Critiques and the Opus Postumum; (2) Fichte's reception of the Critical Philosophy; (3) Schelling's Naturphilosophie as a reaction to Kant and Fichte; and (4) Hegel's indebtedness to and famous departure from Kantianism.In "The Unity of Nature and Freedom: Kant's Conception of the System of Philosophy," Paul Guyer argues that, appearances aside, Kant's thought from the first Critique to the Opus Postumum forms a continuous and self-consistent project. Indeed, Guyer claims that Kant's conception of transcendental philosophy remained essentially unchanged throughout this period (this despite frequent—and often flattering—remarks in the Opus Postumum concerning Spinoza). In contrast, Jeffrey Edwards' "Spinozism, Freedom, and Transcendental Dynamics in Kant's Final System of Transcendental Idealism" points to a conceptual tension present in Kant's late attempt to find common ground between Spinoza and transcendental idealism. Edwards argues that Kant's notion in the Opus Postumum of a dynamical form of matter leads him to embrace a realist (quasi-Spinozistic) conception of space. Finally, in "Is the Critique of Judgment Post-Critical?" Henry Allison challenges the view (common from Hegel to Guyer) that a profound change in Kant's project occurs in the Critique of Judgment, viz., that something profoundly un-transcendental emerges with Kant's notions of the intuitive intellect and purposiveness of nature.Günter Zöller, in "From Critique to Metacritique: Fichte's Transformation of Kant's Transcendental Idealism," offers an interpretation of the development of notions of "system" and "transcendental idealism" from Kant to Fichte. This is an indispensable paper for anyone concerned with the fine points of this development and, [End Page 302] indeed, Zöller's treatment is throughout a model of clarity. In "The Spirit of the Wissenschaftslehre," Daniel Breazeale offers an outstanding survey of the defining features of Fichte's early Jena Wissenschaftslehre. The breadth and depth of Breazeale's paper is a signal achievement, one that puts before the reader's eyes the lay of the often convoluted and confusing land that is the Wissenschaftslehre. Furthermore, Breazeale's discussion of the subdivisions of the Wissenschaftslehre (i.e., the particular sciences grounded by the "science of science") is of particular benefit for understanding the totality of Fichte's conception of philosophy."The 'I' as Principle of Philosophy" by Allen Wood, and "The Practical Foundation of Philosophy in Kant, Fichte, and After" by Karl Ameriks offer differing evaluations of the kind of "primacy of the practical" that each author locates in Fichte. Ameriks rejects Wood's sympathetic reading of the fundamentally practical character of the Fichtean "I." What is at stake for the authors is the success or failure of Fichte's attempt to account for the unity of theoretical and practical reason. It is important to note however that, unlike Kant, Fichte does not subscribe to the "primacy of the practical" thesis; indeed, Fichte holds the two aspects of reason to be "equiprimordial." As such, some of Wood's and Ameriks' claims are either misleading or simply wrong. This point aside, a common criticism of Fichte is that he reduces the world to the bare posit of the "I," a view of which Robert Pippin's "Fichte's Alleged Subjective, Psychological, One-Sided Idealism" quickly disposes. Instead, Pippin presents a "normative non-psychologistic" interpretation of Fichtean idealism.Regarding Schelling's Kant-reception, Manfred Baum's "The Beginnings of Schelling's Philosophy of Nature" locates the origins of Schelling's Naturphilosophie in his youthful interpretation of Plato's Timaeus. Baum's analyses, which abound with rich historical and philological information, are complemented by Dieter Sturma's... (shrink)

In this chapter, I will make the case that we can accurately describe Ghazali’s position as a natural law theory. Kevin Reinhart (1995), on whose translation of al-Mustaṣfā I will be depending in what follows, has also treated this topic. Though he did not specifically compare Ghazali’s position there with natural law theory, like Hourani (1985) he interprets Ghazali’s position as subjectivist on key points rendering it incompatible with natural law theory. Thus, I will begin with a prima facie (...) case for this incompatibility roughly along the lines one finds in Reinhart, and argue that a closer examination of the relevant text of al-Mustaṣfā along with the parallel section of al-Iqtiṣād, also cited by Hourani, shows that Ghazali’s position is not conclusively subjectivist, but instead is compatible with a natural law theory. I will examine key sections of Ghazali’s Kimiya al-Sa’dāt that quite clearly express a natural law theory of morality. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Future of the Book: Images of Reading in the American Utopian Novel by Kevin J. HayesMatthew LeggattKevin J. Hayes. The Future of the Book: Images of Reading in the American Utopian Novel. Oxford: Oxford University Press, 2022. E-book, 192 pp. ISBN 9780192670960.Kevin J. Hayes is a writer of high regard, having published many books over his distinguished career, including biographical studies such as Herman Melville, (...) Mark Twain, George Washington: A Life in Books, and several on Edgar Allen Poe. Works like the 2020 monograph Shakespeare and the Making of America showcase his intersecting interests in biography, literature, and American political history. It is these interests that are very much on display in his 2022 monograph The Future of the Book: Images of Reading in the American Utopian Novel, and we should be thankful that Hayes has turned his attention to the subject of utopian fiction as he certainly has much to add to the discussion. The book is clearly a labor of love and Hayes writes with a great degree of detail and authority suggesting he has always held a deep interest in the utopian novel. In fact, from the preface, it is clear the research supporting this book has spanned many years.The preface sets it all up very neatly. Immediately, the reader is invited into the research story of the book. Hayes has an evocative and methodical style that carries that research throughout. The author is also careful in this preface to assert his expertise in the field. Having read “virtually every utopian novel in American literature published before 1910” on microfilm gives Hayes the opportunity to explore many of the obscure and lesser-known works of the period (ix), which he notes in his introduction is primarily between 1880 and 1915. Since many of these novels are yet to be digitized, his insight is notably rare.Aside from an introduction and conclusion, the book is divided into five chapters. The first is titled “The Residential Library” and is centrally about [End Page 601] books in home-spaces, from personal libraries to books on shelves in someone’s living room. Chapter 2, “The Public Library,” explores depictions of public libraries and ways that collected knowledge might be organized and made accessible in utopian visions. “The Idea of Authorship,” chapter 3, is about the professional/amateur status of authors in utopian societies. In this section, Hayes also explores ideas about literary quality and attempts to answer concerns that a utopian age would necessarily be incapable of producing great literature. Chapter 4, titled “The Newspaper,” details the struggles utopian authors have had with the newspaper format. Finally, “The Printed Page and the Written Word” examines ways in which utopian authors sought to refine the printed and written word and their innovative suggestions in this area. Each of these chapters opens by considering Edward Bellamy’s Looking Backward in relation to the subject at hand and Bellamy’s 1888 novel is referred to extensively throughout The Future of the Book, offering a frame for Hayes’s exploration of utopian literature’s inner dialogue with the printed word.In his introduction, Hayes highlights that much of the scholarly work in this area has focused on dystopias. Indeed, when I think about the representation of literature in speculative fiction I tend, first, to think of the great dystopias like Orwell’s Nineteen Eighty-Four, in which history is erased and rewritten by The Party, or Ray Bradbury’s Fahrenheit 451, in which books are considered dangerous and thus are rigorously hunted and burned by the ironically named Firemen of the future. Alternatively, postapocalyptic movies spring to mind. Taking shelter in the New York Public Library, Sam Hall (played by Jake Gyllenhaal) frantically burns books for warmth despite the protests of several other characters in Roland Emmerich’s 2004 blockbuster The Day After Tomorrow. Likewise, in “Marooned” (1989), an episode of the British SF sitcom Red Dwarf (1988–), of which I was particularly fond during my formative years, a copy of the collected works of Shakespeare is burned to keep the last remaining human, David Lister (played by Craig Charles), alive. In the opposite direction, some postapocalyptic... (shrink)

Predictable polarization is everywhere: we can often predict how people’s opinions, including our own, will shift over time. Extant theories either neglect the fact that we can predict our own polarization, or explain it through irrational mechanisms. They needn’t. Empirical studies suggest that polarization is predictable when evidence is ambiguous, that is, when the rational response is not obvious. I show how Bayesians should model such ambiguity and then prove that—assuming rational updates are those which obey the value of evidence—ambiguity (...) is necessary and sufficient for the rationality of predictable polarization. The main theoretical result is that there can be a series of such updates, each of which is individually expected to make you more accurate, but which together will predictably polarize you. Polarization results from asymmetric increases in accuracy. This mechanism is not only theoretically possible, but empirically plausible. I argue that cognitive search—searching a cognitively accessible space for a particular item—often yields asymmetrically ambiguous evidence, I present an experiment supporting its polarizing effects, and I use simulations to show how it can explain two of the core causes of polarization: confirmation bias and the group polarization effect. (shrink)

This book is devoted to a different proposal--that the logical structure of the scientist's method should guarantee eventual arrival at the truth given the scientist's background assumptions.

There is growing interest in understanding and eliciting division of labor within groups of scientists. This paper illustrates the need for this division of labor through a historical example, and a formal model is presented to better analyze situations of this type. Analysis of this model reveals that a division of labor can be maintained in two different ways: by limiting information or by endowing the scientists with extreme beliefs. If both features are present however, cognitive diversity is maintained indefinitely, (...) and as a result agents fail to converge to the truth. Beyond the mechanisms for creating diversity suggested here, this shows that the real epistemic goal is not diversity but transient diversity. (shrink)

Of the dozens of purported solutions to the liar paradox published in the past fifty years, the vast majority are "traditional" in the sense that they reject one of the premises or inference rules that are used to derive the paradoxical conclusion. Over the years, however, several philosophers have developed an alternative to the traditional approaches; according to them, our very competence with the concept of truth leads us to accept that the reasoning used to derive the paradox is sound. (...) That is, our conceptual competence leads us into inconsistency. I call this alternative the inconsistency approach to the liar. Although this approach has many positive features, I argue that several of the well-developed versions of it that have appeared recently are unacceptable. In particular, they do not recognize that if truth is an inconsistent concept, then we should replace it with new concepts that do the work of truth without giving rise to paradoxes. I outline an inconsistency approach to the liar paradox that satisfies this condition. (shrink)

We propose a conceptual model that maps the causal pathways relating biological evolution to cultural change. It builds on conventional evolutionary theory by placing emphasis on the capacity of organisms to modify sources of natural selection in their environment (niche construction) and by broadening the evolutionary dynamic to incorporate ontogenetic and cultural processes. In this model, phenotypes have a much more active role in evolution than generally conceived. This sheds light on hominid evolution, on the evolution of culture, and on (...) altruism and cooperation. Culture amplifies the capacity of human beings to modify sources of natural selection in their environments to the point where that capacity raises some new questions about the processes of human adaptation. Key Words: adaptation; altruism; cooperation; evolutionary psychology; gene-culture coevolution; human evolution; human genetics; niche construction; sociobiology. (shrink)

On at least one of its uses, ‘higher-order evidence’ refers to evidence about what opinions are rationalized by your evidence. This chapter surveys the foundational epistemological questions raised by such evidence, the methods that have proven useful for answering them, and the potential consequences and applications of such answers.

The personal identity relation is of great interest to philosophers, who often consider fictional scenarios to test what features seem to make persons persist through time. But often real examples of neuroscientific interest also provide important tests of personal identity. One such example is the case of Phineas Gage – or at least the story often told about Phineas Gage. Many cite Gage’s story as example of severed personal identity; Phineas underwent such a tremendous change that Gage “survived as a (...) different man.” I discuss a recent empirical finding about judgments about this hypothetical. It is not just the magnitude of the change that affects identity judgment; it is also the negative direction of the change. I present an experiment suggesting that direction of change also affects neuroethical judgments. I conclude we should consider carefully the way in which improvements and deteriorations affect attributions of personal identity. This is particularly important since a number of the most crucial neuroethical decisions involve varieties of cognitive enhancements or deteriorations. (shrink)

Mental capacities for perceiving, remembering, thinking, and planning involve the processing of structured mental representations. A compositional semantics of such representations would explain how the content of any given representation is determined by the contents of its constituents and their mode of combination. While many have argued that semantic theories of mental representations would have broad value for understanding the mind, there have been few attempts to develop such theories in a systematic and empirically constrained way. This paper contributes to (...) that end by developing a semantics for a ‘fragment’ of our mental representational system: the visual system’s representations of the bounding contours of objects. At least three distinct kinds of composition are involved in such representations: ‘concatenation’, ‘feature composition’, and ‘contour composition’. I sketch the constraints on and semantics of each of these. This account has three principal payoffs. First, it models a working framework for compositionally ascribing structure and content to perceptual representations, while highlighting core kinds of evidence that bear on such ascriptions. Second, it shows how a compositional semantics of perception can be compatible with holistic, or Gestalt, phenomena, which are often taken to show that the whole percept is ‘other than the sum of its parts’. Finally, the account illuminates the format of a key type of perceptual representation, bringing out the ways in which contour representations exhibit domain-specific form of the sort that is typical of structured icons such as diagrams and maps, in contrast to typical discursive representations of logic and language. (shrink)

Theories of scientific rationality typically pertain to belief. In this paper, the author argues that we should expand our focus to include motivations as well as belief. An economic model is used to evaluate whether science is best served by scientists motivated only by truth, only by credit, or by both truth and credit. In many, but not all, situations, scientists motivated by both truth and credit should be judged as the most rational scientists.

In 1961, Ernst Mayr published a highly influential article on the nature of causation in biology, in which he distinguished between proximate and ultimate causes. Mayr argued that proximate causes (e.g. physiological factors) and ultimate causes (e.g. natural selection) addressed distinct ‘how’ and ‘why’ questions and were not competing alternatives. That distinction retains explanatory value today. However, the adoption of Mayr’s heuristic led to the widespread belief that ontogenetic processes are irrelevant to evolutionary questions, a belief that has (1) hindered (...) progress within evolutionary biology, (2) forged divisions between evolutionary biology and adjacent disciplines and (3) obstructed several contemporary debates in biology. Here we expand on our earlier (Laland et al. in Science 334:1512–1516, 2011) argument that Mayr’s dichotomous formulation has now run its useful course, and that evolutionary biology would be better served by a concept of reciprocal causation, in which causation is perceived to cycle through biological systems recursively. We further suggest that a newer evolutionary synthesis is unlikely to emerge without this change in thinking about causation. (shrink)

Perception involves the processing of content or information about the world. In what form is this content represented? I argue that perception is widely compositional. The perceptual system represents many stimulus features (including shape, orientation, and motion) in terms of combinations of other features (such as shape parts, slant and tilt, common and residual motion vectors). But compositionality can take a variety of forms. The ways in which perceptual representations compose are markedly different from the ways in which sentences or (...) thoughts are thought to be composed. I suggest that the thesis that perception is compositional is not itself a concrete hypothesis with specific predictions; rather it affords a productive framework for developing and evaluating specific empirical hypotheses about the form and content of perceptual representations. The question is not just whether perception is compositional, but how. Answering this latter question can provide fundamental insights into perception. (shrink)

It is commonly assumed that images, whether in the world or in the head, do not have a privileged analysis into constituent parts. They are thought to lack the sort of syntactic structure necessary for representing complex contents and entering into sophisticated patterns of inference. I reject this assumption. “Image grammars” are models in computer vision that articulate systematic principles governing the form and content of images. These models are empirically credible and can be construed as literal grammars for images. (...) Images can have rich syntactic structure, though of a markedly different form than sentences in language. (shrink)

Suppose you have recently gained a disposition for recognizing a high-level kind property, like the property of being a wren. Wrens might look different to you now. According to the Phenomenal Contrast Argument, such cases of perceptual learning show that the contents of perception can include high-level kind properties such as the property of being a wren. I detail an alternative explanation for the different look of the wren: a shift in one’s attentional pattern onto other low-level properties. Philosophers have (...) alluded to this alternative before, but I provide a comprehensive account of the view, show how my account significantly differs from past claims, and offer a novel argument for the view. Finally, I show that my account puts us in a position to provide a new objection to the Phenomenal Contrast Argument. (shrink)

A definition of emotion common to the affective sciences is an urgent desideratum. Lack of such a definition is a constant source of numerous misunderstandings and a series of mostly fruitless debates. There is little hope that there ever will be agreement on a common definition of emotion, given the sacred traditions of the disciplines involved and the egos of the scholars working in these disciplines. Our aim here is more modest. We propose a list of elements for a working (...) definition of emotion and discuss the justification for the inclusion of elements from our respective perspectives (philosophy and psychology). This working partial definition may at least serve as a litmus test to examine theories of emotion, old and new, across disciplinary boundaries. (shrink)

‘What is characteristic of every mental activity’, according to Brentano, is ‘the reference to something as an object. In this respect every mental activity seems to be something relational.’ But what sort of a relation, if any, is our cognitive access to the world? This question – which we shall call Brentano’s question – throws a new light on many of the traditional problems of epistemology. The paper defends a view of perceptual acts as real relations of a subject to (...) an object. To make this view coherent, a theory of different types of relations is developed, resting on ideas on formal ontology put forward by Husserl in his Logical Investigations and on the theory of relations sketched in Smith's "Acta cum fundamentis in re". The theory is applied to the notion of a Cambridge change, which proves to have an unforeseen relevance to our understanding of perception. (shrink)

This paper develops a problem for conciliationism that is structurally similar to the self-undermining problem but which is immune to most of the solutions offered against it. A popular objection to conciliationism is that it undermines itself. Given the current disagreement among philosophers about conciliationism, conciliationism seems to require rejecting conciliationism. Adam Elga (2010) has influentially argued that this shows that conciliationism is an incoherent method. By recommending its own rejection, conciliationism recommends multiple, incompatible responses to the same body of (...) experience. Many have offered solutions to this problem, including Elga himself. However, there is another undermining problem. When a peer disagrees about their own peerhood, conciliationism can require the rejection of the peer’s peerhood. The result is that conciliationism recommends two incompatible responses to the same body of experience in a way that parallels the original self-undermining problem. But since many, if not all, of the proposed solutions to the original undermining problem depend on distinctive characteristics of conciliationism undermining itself, they cannot apply to a peer undermining themself. I illustrate this by dividing the solutions that have been offered against the self-undermining problem into two categories: self-exempting solutions and non-exempting solutions. I then show how the proposed solutions under each type do not extend to the peer-undermining problem. If that is right, then conciliationism is faced with a more difficult undermining problem than has been so far acknowledged. (shrink)

Although many philosophers have employed the distinction between “direct” and “indirect” roles for values in science, I argue that it merits further clarification. The distinction can be formulated in several ways: as a logical point, as a distinction between epistemic attitudes, or as a clarification of different consequences associated with accepting scientific claims. Moreover, it can serve either as part of a normative ideal or as a tool for policing how values influence science. While various formulations of the distinction may (...) contribute to a normative ideal, they have limited effectiveness for regulating how values influence science. (shrink)

People coordinate body postures and gaze patterns during conversation. We review literature showing that (1) action embodies cognition, (2) postural coordination emerges spontaneously when two people converse, (3) gaze patterns influence postural coordination, (4) gaze coordination is a function of common ground knowledge and visual information that conversants believe they share, and (5) gaze coordination is causally related to mutual understanding. We then consider how coordination, generally, can be understood as temporarily coupled neuromuscular components that function as a collective unit (...) known as a coordinative structure in the motor control literature. We speculate that the coordination of gaze and body sway found in conversation may be understood as a cross‐person coordinative structure that embodies the goals of the joint action system. (shrink)

Reasonable individuals often share a rationale for a decision but, in other cases, they make the same decision based on disparate and often incompatible rationales. The social contract tradition has been divided between these two methods of solving the problem of social cooperation: must social cooperation occur in terms of common reasoning, or can individuals with different doctrines simply converge on shared institutions for their own reasons? For Hobbes, it is rational for all persons, regardless of their theological beliefs, to (...) consent to the sovereign's power. But for Locke, only Protestants with a shared theology could be party to the social contract. Rousseau thought that private reasons are not part of the general will, and in Kant's hypothetical contract, pure noumena reach common principles for the social order through the same reasoning process. In A Theory of Justice, John Rawls agreed with Rousseau and Kant: selecting the principles of justice requires modeling parties to the original position as having identical reasons. But in Political Liberalism, Rawls embraced the idea of an overlapping consensus, which accords distinct reasons justificatory force. (shrink)

Mainstream political liberalism holds that legal coercion is permissible only if it is based on reasons that all can share, access or accept. But these requirements are subject to well-known problems. I articulate and defend an intelligible reasons requirement as an alternative. An intelligible reason is a reason that all suitably idealized members of the public can see as a reason for the person who offers it according to that person’s own evaluative standards. It thereby permits reasons into public justification (...) that all cannot share, access, or accept, and so contrasts with standard approaches to public justification. The intelligible reasons requirement has two striking implications. First, it severs the connection between public justification and principles of deliberative restraint. Second, it pushes political liberals to appeal to other political processes to publicly justify law, specifically bargaining, adjudication, and social evolution. (shrink)