in the treatise, hume claims to identify many “fictions of the imagination” among both “vulgar” and philosophical beliefs. To name just a few, these include the fiction of one aggregate composed of many parts,1 the fiction of a material object’s identity through change, and the fiction of a human mind’s identity through change and interruption in its existence. Hume claims that these fictions and others like them are somehow defective: in his words, they are “improper,” “inexact,” or not “strict”. I (...) will argue that this claim conflicts with other commitments.. (shrink)

If connectionism is to be an adequate theory of mind, we must have a theory of representation for neural networks that allows for individual differences in weighting and architecture while preserving sameness, or at least similarity, of content. In this paper we propose a procedure for measuring sameness of content of neural representations. We argue that the correct way to compare neural representations is through analysis of the distances between neural activations, and we present a method for doing so. We (...) then use the technique to demonstrate empirically that different artificial neural networks trained by backpropagation on the same categorization task, even with different representational encodings of the input patterns and different numbers of hidden units, reach states in which representations at the hidden units are similar. We discuss how this work provides a rebuttal to Fodor and Lepore's critique of Paul Churchland's state space semantics. (shrink)

This essay gives a new interpretation of Hume's second thoughts about minds in the Appendix, based on a new interpretation of his view of composition. In Book 1 of the Treatise, Hume argued that, as far as we can conceive it, a mind is a whole composed by all its perceptions. But—this essay argues—he also held that several perceptions form a whole only if the mind to which they belong supplies a “connexion” among them. In order to do so, it (...) must contain a further perception or perceptions. But when the perceptions in question are all of those belonging to a given mind—as in the section “Of personal identity” and the Appendix—there cannot be a further perception in that mind, and so those perceptions do not form a whole. Hence, Hume's views were inconsistent. This essay argues that, unlike most others, this interpretation explains his retreat to skepticism in the Appendix. (shrink)

The past two decades have seen an explosion of literature on Hume's views about mental representation and intentionality. This essay gives a roadmap of this literature, while arguing for two main interpretive claims. First, Hume aims to naturalize all forms of mental representation and intentionality, that is, to explain them in terms of properties and relations that are found throughout the natural world (not just in minds) and that are not, individually, peculiar to representational or intentional things. Second, Hume holds (...) that the passions are not representational but do have intentionality extrinsically. (shrink)

Hume’s discussion of space in the Treatise addresses two main topics: divisibility and vacuum. It is widely recognized that his discussion of divisibility contains an answer to Bayle, whose Dictionary article “Zeno of Elea” presents arguments about divisibility as support for fideism. It is not so widely recognized that, elsewhere in the same article, Bayle presents arguments about vacuum as further support for fideism. This paper aims to show that Hume’s discussion of vacuum contains an answer to these vacuum-based fideistic (...) arguments. Key to this answer is a distinction between two ways in which vacuum was conceived in the early modern period: i) as a genuine thing that has spatial properties, and yet is immobile, indivisible, and penetrable ; ii) as a mere absence of spatial things. This paper also aims to provide a novel defense of Hume against the long-standing objection that he is inconsistent in denying that we can conceive of a vacuum, while allowing that we can conceive of “invisible and intangible distance.” As I interpret him, Hume consistently denies that we can conceive of a positive vacuum, while allowing that we can conceive of two or more objects’ being arranged so as to have privative vacuum between them. (shrink)

This article explains Hume's conception of the imagination and its relations to our other faculties of thought, highlighting the continuities and discontinuities between his views and those of his Early Modern predecessors. It then presents some of the basic functions that Hume thinks the imagination performs, and surveys some highlights of his science of man, showing how he uses the imagination’s basic functions to explain several important mental phenomena; examines “fictions of the imagination,” which have an important place in his (...) science of man; examines his view that whatever we can clearly imagine is possible; and discusses the relationship between Hume’s theory of the imagination and his skepticism. (shrink)

Recent events and advances address the possibility of cloning endangered and extinct species. The ethics of these types of cloning have special considerations, uniquely different from the types of cloning commonly practiced. Cloning of cheetahs may be ethically appropriate, given certain constraints. However, the ethics of cloning extinct species varies; for example, cloning mammoths and Neanderthals is more ethically problematic than conservation cloning, and requires more attention. Cloning Neanderthals in particular is likely unethical and such a project should not be (...) undertaken. It is important to discuss and plan for the constraints necessary to mitigate the harms of conservation and extinct cloning, and it is imperative that scientific and public discourse enlighten and guide actions in the sphere of cloning. (shrink)

The ‘real’ issue concerns the status of qualia, that is, the subjective sensory states into which we are thrown when looking at a yellow leaf, hearing a musical chord, sniffing a camembert, or running our fingers over a piece of sandpaper. Is it possible to provide a satisfactory account of such states using only the resources of a materialist functionalism? Or is it the case -- as it has seemed to many, and as it seems to David Chalmers -- that (...) once we have said all there is to say about the physical basis of, and the functional role of, such states, there remains an uneliminable residue: the brute qualitative matter of ‘what it is like’ to sniff the camembert? Since it is extraordinarily hard to tackle this question head-on, we seek the leverage afforded by the notion of the philosopher's zombie, the point being that if we have a coherent intuition to the effect that there is indeed such a residue, then we ought to be able to conceive of the zombie. Just subtract the residue while leaving all the physical/functional stuff in place. Conversely, if it transpires that the notion of the philosopher's zombie breaks down under stress, this would seem to indicate that the intuition of the ineliminable residue is itself problematic. The ‘remedy’ for a belief in zombies is the sort of Dennettian exercise in imagination proposed in this paper. One must be forced to recognize the huge gulf between the simple informational economies of the thermostat, and even the PC, and the amazingly subtle and layered informational economy of a normal human being. Taking the PC, or the severely degraded registrations of actual blindsight victims, as the model, one may fool oneself into thinking one has imagined something when one has not really confronted its detailed implications. This piece will have accomplished its aim if it encourages a few readers to take the latter possibility more seriously than hitherto. (shrink)

Only in recent years have developmental psychologists begun advocating and exploring dual-process theories and their applicability to cognitive development. In this paper, a dual-process model of developments in two processing systems—an “analytic” and an “experiential” system—is discussed. We emphasise the importance of “metacognitive intercession” and developments in this ability to override experiential processing. In each of two studies of sunk cost decisions, age-related developments in normative decisions were observed, as were declines in the use of a “waste not” heuristic. In (...) the second study, children and adolescents were presented with arguments for normative and non-normative sunk cost decisions. Following argument evaluation, participants were re-presented the original problems and a set of novel, transfer problems. Results indicated that post-argument improvements were most apparent during adolescence. Age-related improvements were most noticeable on the transfer problems. In general, the findings suggest that the ability to metacognitively intercede (i.e., reflect on arguments; inhibit experientially produced responses) emerges towards middle adolescence. However, even by the end of adolescence, in the absence of significant contextual cues and motivation, this ability is infrequently utilised. (shrink)

In his recent book, Economics – Mathematical Politics or Science of Diminishing Returns, Alexander Rosenberg has offered a forceful critique of the scientific pretensions of economics. I am encouraged to note that in his JEL review, Wade Hands singles out Rosenberg's ‘important discussion of intentionality’ as one of the most significant aspects of the book. Encouraged, because this was exactly my impression, and Hands's judgment confirmed my intention to respond to Rosenberg's argument. I hope, however, to be able to disappoint (...) Hands's expectation that this aspect of Rosenberg's work ‘will be least challenged by economists’! (shrink)

This monograph examines the domain of classical political economy using the methodologies developed in recent years both by the new discipline of econo-physics and by computing science. This approach is used to re-examine the classical subdivisions of political economy: production, exchange, distribution and finance. The book begins by examining the most basic feature of economic life – production – and asks what it is about physical laws that allows production to take place. How is it that human labour is able (...) to modify the world? It looks at the role that information has played in the process of mass production and the extent to which human labour still remains a key resource. The Ricardian labour theory of value is re-examined in the light of econophysics, presenting agent based models in which the Ricardian theory of value appears as an emergent property. The authors present models giving rise to the class distribution of income, and the long term evolution of profit rates in market economies. Money is analysed using tools drawn both from computer science and the recent Chartalist school of financial theory. Covering a combination of techniques drawn from three areas, classical political economy, theoretical computer science and econophysics, to produce models that deepen our understanding of economic reality, this new title will be of interest to higher level doctoral and research students, as well as scientists working in the field of econophysics. (shrink)

This monograph examines the domain of classical political economy using the methodologies developed in recent years both by the new discipline of econo-physics and by computing science. This approach is used to re-examine the classical subdivisions of political economy: production, exchange, distribution and finance. The book begins by examining the most basic feature of economic life – production – and asks what it is about physical laws that allows production to take place. How is it that human labour is able (...) to modify the world? It looks at the role that information has played in the process of mass production and the extent to which human labour still remains a key resource. The Ricardian labour theory of value is re-examined in the light of econophysics, presenting agent based models in which the Ricardian theory of value appears as an emergent property. The authors present models giving rise to the class distribution of income, and the long term evolution of profit rates in market economies. Money is analysed using tools drawn both from computer science and the recent Chartalist school of financial theory. Covering a combination of techniques drawn from three areas, classical political economy, theoretical computer science and econophysics, to produce models that deepen our understanding of economic reality, this new title will be of interest to higher level doctoral and research students, as well as scientists working in the field of econophysics. (shrink)

Owen Flanagan's arguments concerning qualia constitute an intermediate position between Dennett's “disqualification” of qualia and the thesis that qualia represent an insurmountable obstacle to constructive naturalism. This middle ground is potentially attractive, but it is shown to have serious problems. This is brought out via consideration of several classic areas of dispute connected with qualia, including the inverted spectrum, Frank Jackson's thought experiment, Hindsight, and epiphenomenalism. An attempt is made to formulate the basis for a less vulnerable variant on the (...) “middle ground”. (shrink)

The essays in this volume share an ambitious interest in investigating death as an individual, social, and metaphorical phenomenon that may be exemplified by themes involving burial rituals, identity, and commemoration. The disciplines represented are as diverse as art history, classics, history, music, languages and literatures, and the approaches taken reflect various aspects of contemporary death studies.

This article delineates two dimensions along which computational models of face processing may vary, and briefly review three such models, the Dailey and Cottrell model; the O'Reilly and Munakata model; and the Riesenhuber and Poggio. It focuses primarily on one of the models and shows how this model is used to reveal potential mechanisms underlying the neural processing of faces and objects—the development of a specialized face processor, how it could be recruited for other domains, hemispheric lateralization of face processing, (...) facial expression processing, and the development of face discrimination. It turns to the Riesenhuber and Poggio model to describe the elegant way it has been used to predict functional magnetic resonance imaging data on face processing. The overall strategy of these modeling efforts is to sample problems that are constrained by neurophysiological and behavioral data, and to stress the ways in which models can generate novel hypotheses about the way humans process faces. (shrink)

Interest in John Maynard Keynes has increased significantly over the past decade with the publication of his collected writings, increased access to his unpublished papers, and the resulting explosion of secondary literature. Responding to this renewed attention, this collection brings together economists and historians of economics with scholars from philosophy and other related fields to reconsider Keynes’s work and its legacy. Several of these essays look at Keynes not simply as an economist, but more broadly as a philosopher. Special attention (...) is directed to his views on aesthetics and moral philosophy, as well as his contributions as a probability theorist. The development of the Keynesian heritage is also considered: How did Keynesian ideas become assimilated and domesticated into the mainstream of economic thought—to the point of becoming dominant as the orthodoxy of the economics profession? What was the relationship between postwar British conservatives, Keynes’s work, and Britain’s relative economic decline? The archivist in charge of Keynes’s papers provides an additional vantage point on Keynes’s working methods and the broad range of scholars interested in his writings. Finally, all of the essays are followed by a responder’s comments, thus providing an exchange of viewpoints. _Contributors. _A. W. Coats, Allin F. Cottrell, Jacqueline Cox, William Darity, John Davis, Robert Dimand, Peter Groenewegen, Kevin Hoover, Henry E. Kyburg Jr., David Laidler, Michael S. Lawlor, Greg Lilly, D. E. Moggridge, R. M. O’Donnell, Kerry Pearce, Jochen Runde, Teddy Seidenfeld, J. D. Tomlinson. (shrink)

In Hume's True Scepticism, Donald C. Ainslie offers a highly original, systematic interpretation of Treatise Book 1, part 4, and of much else in the Treatise besides. Along the way, he provides new solutions to two of the main outstanding problems of Hume scholarship: what is the relationship between Hume's skepticism and his commitment to pursuing a naturalistic science of man? And what "very considerable mistake" about personal identity does Hume mean to report in the Appendix? These are fantastic achievements. (...) I congratulate Ainslie on the book, and on the JHP Book Prize, which I am happy to learn he has won.To keep things interesting, these comments will focus on three related topics where I am not yet... (shrink)

This volume features the complete text of all regular papers, posters, and summaries of symposia presented at the 18th annual meeting of the Cognitive Science ...

Scientific integrity cannot be adequately ensured by appeals to the ethical principles of individual researchers. Research fraud has become a public scandal, exacerbated by our inability accurately to judge its extent. Current reliance on peer review of articles ready for publication as the sole means to control the quality and integrity of the majority of research has been shown to be inadequate, partly because faults in the research process may be concealed and partly because anonymous peer review is itself imperfect. (...) Consequently, the scientific literature is mixed, with the reader unable always to distinguish the good articles from the bad. Scientific research is subject to market forces that will always provide a motivation for a range of misdemeanours. This has led to a ‘market for lemons’. Regulations, and sanctions against miscreants, need to be modelled on those historically found necessary to limit financial fraud. Practical and effective systems of process control and audit have already been devised to ensure the integrity of clinical and pre-clinical research. These should be adapted for use in a much wider range of research activities. (shrink)

The word processor is a stupid and grossly inefficient tool for preparing text for communication with others. That is the claim I shall defend below. It will probably strike you as bizarre at first sight. If I am against word processors, what do I propose: that we write in longhand, or use a mechanical typewriter? No. While there are things to be said in favor of these modes of text preparation I take it for granted that most readers of this (...) essay will do most of their writing using a computer, as I do. My claim is that there are much better ways of preparing text, using a computer, than the word processor. (shrink)

Part of a three book series on theology, which includes God the Creator and God the Ruler, Cottrell expounds upon the three major elements of God as revealed in the scriptures: providence, redemption and creation.