What psychological and philosophical significance should we attach to recent efforts at computer simulations of human cognitive capacities? In answering this question, I find it useful to distinguish what I will call "strong" AI from "weak" or "cautious" AI. According to weak AI, the principal value of the computer in the study of the mind is that it gives us a very powerful tool. For example, it enables us to formulate and test hypotheses in a more rigorous and precise fashion. (...) But according to strong AI, the computer is not merely a tool in the study of the mind; rather, the appropriately programmed computer really is a mind, in the sense that computers given the right programs can be literally said to. (shrink)

This book is the one to put into the hands of those who have been over-impressed by Austin 's critics....[Warnock's] brilliant editing puts everybody who is concerned with philosophical problems in his debt.

Edmund Gettier is Professor Emeritus at the University of Massachusetts, Amherst. This short piece, published in 1963, seemed to many decisively to refute an otherwise attractive analysis of knowledge. It stimulated a renewed effort, still ongoing, to clarify exactly what knowledge comprises.

The paper explores the distinction between two doctrines, both of which inform theory construction in much of modern cognitive psychology: the representational theory of mind and the computational theory of mind. According to the former, propositional attitudes are to be construed as relations that organisms bear to mental representations. According to the latter, mental processes have access only to formal (nonsemantic) properties of the mental representations over which they are defined.The following claims are defended: (1) That the traditional dispute between (...) “rational” and “naturalistic” psychology is plausibly viewed as an argument about the status of the computational theory of mind. Rational psychologists accept a formality condition on the specification of mental processes; naturalists do not. (2) That to accept the formality condition is to endorse a version of methodological solipsism. (3) That the acceptance of some such condition is warranted, at least for that part of psychology which concerns itself with theories of the mental causation of behavior. This is because: (4) such theories require nontransparent taxonomies of mental states; and (5) nontransparent taxonomies individuate mental states without reference to their semantic properties. Equivalently, (6) nontransparent taxonomies respect the way that the organism represents the object of its propositional attitudes toitself, and it is this representation which functions in the causation of behavior.The final section of the paper considers the prospect for a naturalistic psychology: one which defines its generalizations over relations between mental representations and their environmental causes, thus seeking to account for the semantic properties of propositional attitudes. Two related arguments are proposed, both leading to the conclusion that no such research strategy is likely to prove fruitful. (shrink)

INTRODUCTION: TWO KINDS OF RLDUCTIONISM The man who laughs is the one who has not yet heard the terrible news. BERTHOLD BRECHT I propose, in this book, ...

It is generally accepted that there is something special about reasoning by using mental images. The question of how it is special, however, has never been satisfactorily spelled out, despite more than thirty years of research in the post-behaviorist tradition. This article considers some of the general motivation for the assumption that entertaining mental images involves inspecting a picture-like object. It sets out a distinction between phenomena attributable to the nature of mind to what is called the cognitive architecture, and (...) ones that are attributable to tacit knowledge used to simulate what would happen in a visual situation. With this distinction in mind, the paper then considers in detail the widely held assumption that in some important sense images are spatially displayed or are depictive, and that examining images uses the same mechanisms that are deployed in visual perception. I argue that the assumption of the spatial or depictive nature of images is only explanatory if taken literally, as a claim about how images are physically instantiated in the brain, and that the literal view fails for a number of empirical reasons – for example, because of the cognitive penetrability of the phenomena cited in its favor. Similarly, while it is arguably the case that imagery and vision involve some of the same mechanisms, this tells us very little about the nature of mental imagery and does not support claims about the pictorial nature of mental images. Finally, I consider whether recent neuroscience evidence clarifies the debate over the nature of mental images. I claim that when such questions as whether images are depictive or spatial are formulated more clearly, the evidence does not provide support for the picture-theory over a symbol-structure theory of mental imagery. Even if all the empirical claims were true, they do not warrant the conclusion that many people have drawn from them: that mental images are depictive or are displayed in some (possibly cortical) space. Such a conclusion is incompatible with what is known about how images function in thought. We are then left with the provisional counterintuitive conclusion that the available evidence does not support rejection of what I call the “null hypothesis”; namely, that reasoning with mental images involves the same form of representation and the same processes as that of reasoning in general, except that the content or subject matter of thoughts experienced as images includes information about how things would look. (shrink)

Rich with historical and cultural value, these works are published unaltered from the original University of Minnesota Press editions.

According to the dominant computational approach in cognitive science, cognitive agents are digital computers; according to the alternative approach, they are dynamical systems. This target article attempts to articulate and support the dynamical hypothesis. The dynamical hypothesis has two major components: the nature hypothesis (cognitive agents are dynamical systems) and the knowledge hypothesis (cognitive agents can be understood dynamically). A wide range of objections to this hypothesis can be rebutted. The conclusion is that cognitive systems may well be dynamical systems, (...) and only sustained empirical research in cognitive science will determine the extent to which that is true. (shrink)

The possible role of language in intermodular communication and non-domain-specific thinking is an empirical issue that is independent of the “vehicle” claim that natural language is “constitutive” of some thoughts. Despite noting objections to various forms of the thesis that we think in language, Carruthers entirely neglects a potentially fatal objection to his own preferred version of this “cognitive conception.”.

In an attempt to revive discussion of the argument from illusion this paper amends the classic version of the argument to avoid Austin's main objection. It then develops and defends a version of the intentional object reply to the argument, arguing that an "unendorsed story" account of reports of dreams and hallucinations avoids commitment to nonexistent objects.

Historians of philosophy often credit Descartes, Locke, and other seventeenth-century authors with having introduced one of the most vexing problems into epistemology: the problem of mental representations. For these authors claimed that our knowledge of the external world is always mediated by mental representations, so that we have immediate access only to these representations, the ideas in our mind. As is well known, this “veil-of-ideas epistemology” gave rise to a number of skeptical questions. How can we be certain that our (...) ideas are accurate representations of the external world? And how can we be sure that there is an external world at all if we never have immediate access to it? In his highly original and provocative study, Robert Pasnau argues that these questions are not distinctively modern. They were already asked and thoroughly discussed by medieval authors: “much of what is often taken to be novel in the seventeenth and eighteenth centuries was already old news by the fourteenth”. According to Pasnau, it was Thomas Aquinas who introduced some form of representationalism into epistemology by developing the species-theory, and it was first Peter John Olivi and later William Ockham who attacked this theory, insisting that we always have immediate cognitive access to the external world. (shrink)

Nicolas Malebranche's account of the nature of ideas and their role in knowledge and perception has been greatly misunderstood by both his critics and commentators. In this work, Nadler examines Malebranche's theory of ideas and the doctrine of the vision in God with the aim of replacing the standard interpretation of Malebranche's account with a new reading. He argues that Malebranche's ideas should be seen as essences or logical concepts, and that our apprehension of them is thus of a purely (...) intellectual character and serves to provide us with knowledge of eternal truths. He then shows that the visionary representationalist reading usually given to Malebranche's theory of perception simply misconstrues the nature of ideas and the role he intended them to play in perception. Nadler's discussion includes detailed analyses of Malebranche's notion of representation and of his arguments for the presence of divine ideas in knowledge and perception. These aspects of Malebranche's system are considered both in light of his Cartesian and Augustinian commitments and in the broader seventeenth-century philosophical context. (shrink)

Are experience and stimulus necessarily alike? Wertheimer spoke of this as an “insidious and insistent belief”. By contrast, Watson devotes an entire book to the defense of the thesis that representation necessarily requires resemblance. I argue that this bold and important thesis is ambiguous between a historical and a systematic reading, and that in either one of these readings the thesis, for different reasons, will be found wanting. Second, a proper evaluation of it in either one of its possible interpretations (...) requires a careful analysis of the notion of resemblance. I proceed to supply some necessary distinctions and argue that, given such an analysis, Watson's thesis may be historically applicable only to ancient and medieval philosophy, while its systematic import is untenable. (shrink)

In this extraordinarily original and profound work, Noam Chomsky discusses themes in the study of language and mind since the end of the sixteenth century in order to explain the motivations and methods that underlie his work in linguistics, the science of mind, and even politics. This edition includes a new and specially written introduction by James McGilvray, contextualising the work for the twenty-first century. It has been made more accessible to a larger audience; all the French and German in (...) the original edition has been translated, and the notes and bibliography have been brought up to date. The relationship between the original edition and contemporary biolinguistic work is also explained. This challenging volume is an important contribution to the study of language and mind, and to the history of these studies since the end of the sixteenth century. (shrink)

What might a theory of mental imagery look like, and how might one begin formulating such a theory? These are the central questions addressed in the present paper. The first section outlines the general research direction taken here and provides an overview of the empirical foundations of our theory of image representation and processing. Four issues are considered in succession, and the relevant results of experiments are presented and discussed. The second section begins with a discussion of the proper form (...) for a cognitive theory, and the distinction between a theory and a model is developed. Following this, the present theory and computer simulation model are introduced. This theory specifies the nature of the internal representations (data structures) and the processes that operate on them when one generates, inspects, or transforms mental images. In the third, concluding, section we consider three very different kinds of objections to the present research program, one hinging on the possibility of experimental artifacts in the data, and the others turning on metatheoretical commitments about the form of a cognitive theory. Finally, we discuss how one ought best to evaluate theories and models of the sort developed here. (shrink)

This book does several things, and it does them all well. Yolton firmly contextualizes the debates about perception within the seventeenth and eighteenth centuries, while showing how these debates are often repeated in contemporary philosophy of mind. Along the way, he provides novel interpretations of Descartes, Locke, Berkeley, Hume, and Kant that are clearly and convincingly presented. Perhaps the most important feature of his treatment is that it so vividly shows the Moderns grappling with issues about perception that continue to (...) plague us. The uniting theme of the work is Yolton’s insistence that direct realism and representationalism are compatible. Yolton’s defense of direct realism is largely motivated by the thesis that many philosophers incorrectly take a representational theory of mind to necessitate indirect realism. This mistake arises, according to Yolton, because they suppose that the representations themselves become the objects of perception and therefore stand between the perceiver and the world of objects. Yolton’s argument that the philosophers of the seventeenth and eighteenth centuries were struggling to establish two interactive relations between perceivers and the physical world underlies his compatibility thesis: There is a physical and causal relationship and, more importantly, there is what Yolton calls a “cognitive” or “semantic” relationship. The latter relationship holds the key to the compatibility of representationalism with direct realism. (shrink)

Russian translation of Gettier E. L. Is Justified True Belief Knowledge? // Analysis, vol. 23, 1963. Translated by Lev Lamberov with kind permission of the author.

Stephen Gaukroger traces the development of Descartes's thought in the social, religious, and intellectual context of seventeenth‐century Europe. Gaukroger describes Descartes's upbringing and his education at the Jesuit La Flèche collège, and shows the role these played in the development of his ground‐breaking work in philosophy and science. The book details the effects of his relationships with others on his work, both through collaboration and through conflict. It discusses the history of the composition of his major works and details their (...) structure and content. It documents the correspondence, which played a major part in the development of his thinking, both before and after publication. The book concludes, as it begins, with his correspondence with Princess Elizabeth of Bohemia on the subject of the passions. (shrink)

This book is largely a reconsideration of the arguments that are supposed to ground this consensus.

Some philosophers hold that philosophy is what you do to a problem until it’s clear enough to solve it by doing science. Others hold that if a philosophical problem succumbs to empirical methods, that shows it wasn’t really philosophical to begin with. Either way, the facts seem clear enough: questions first mooted by philosophers are sometimes coopted by people who do experiments. This seems to be happening now to the question: “what are propositional attitudes?” and cognitive psychology is the science (...) of note. (shrink)

Some philosophers hold that philosophy is what you do to a problem until it’s clear enough to solve it by doing science. Others hold that if a philosophical problem succumbs to empirical methods, that shows it wasn’t really philosophical to begin with. Either way, the facts seem clear enough: questions first mooted by philosophers are sometimes coopted by people who do experiments. This seems to be happening now to the question: “what are propositional attitudes?” and cognitive psychology is the science (...) of note. (shrink)

The renowned philosopher Jerry Fodor, a leading figure in the study of the mind for more than twenty years, presents a strikingly original theory on the basic constituents of thought. He suggests that the heart of cognitive science is its theory of concepts, and that cognitive scientists have gone badly wrong in many areas because their assumptions about concepts have been mistaken. Fodor argues compellingly for an atomistic theory of concepts, deals out witty and pugnacious demolitions of rival theories, and (...) suggests that future work on human cognition should build upon new foundations. This lively, conversational, and superbly accessible book is the first volume in the Oxford Cognitive Science Series, where the best original work in this field will be presented to a broad readership. Concepts will fascinate anyone interested in contemporary work on mind and language. Cognitive science will never be the same again. (shrink)

In a recent series of publications, dynamicist researchers have proposed a new conception of cognitive functioning. This conception is intended to replace the currently dominant theories of connectionism and symbolicism. The dynamicist approach to cognitive modeling employs concepts developed in the mathematical field of dynamical systems theory. They claim that cognitive models should be embedded, low-dimensional, complex, described by coupled differential equations, and non-representational. In this paper I begin with a short description of the dynamicist project and its role as (...) a cognitive theory. Subsequently, I determine the theoretical commitments of dynamicists, critically examine those commitments and discuss current examples of dynamicist models. In conclusion, I determine dynamicism's relation to symbolicism and connectionism and find that the dynamicist goal to establish a new paradigm has yet to be realized. (shrink)

Little, Brown, 1992 Review by Glenn Branch on Jul 5th 1999 Volume: 3, Number: 27.