In this compelling analysis David Pears examines the foundations of Hume's theory of the mind as presented in the first book of the Treatise. Past studies have tended to take one of two extreme views: that Hume relies exclusively on a theory of meaning, or that he relies exclusively on a theory of truth and evidence. Steering a middle course between these positions, Pears argues that Hume's theory of ideas serves both functions. He examines in detail its application to three (...) difficult problems: causation, personal identity, and sense perception. Hume's solutions, Pears argues, are not theories that can be given a place in standard classification of philosophical theories, but rather depend upon a subtle form of naturalism not altogether unlike Wittgenstein's naturalism. A clearly written and argued study, Hume's System will be of special interest to students and scholars of the history of philosophy. (shrink)

I argue that psychologists interested in human causal judgment should understand and adopt a representation of causal mechanisms by directed graphs that encode conditional independence (screening off) relations. I illustrate the benefits of that representation, now widely used in computer science and increasingly in statistics, by (i) showing that a dispute in psychology between ‘mechanist’ and ‘associationist’ psychological theories of causation rests on a false and confused dichotomy; (ii) showing that a recent, much-cited experiment, purporting to show that human subjects, (...) incorrectly let large causes ‘overshadow’ small causes, misrepresents the most likely, and warranted, causal explanation available to the subjects, in the light of which their responses were normative; (iii) showing how a recent psychological theory (due to P. Cheng) of human judgment of causal power can be considerably generalized: and (iv) suggesting a range of possible experiments comparing human and computer abilities to extract causal information from associations. (shrink)

In Book I, Part I, Section VII of the Treatise, Hume sets out to settle, once and for all, the early modern controversy over abstract ideas. In order to do so, he tries to accomplish two tasks: (1) he attempts to defend an exemplar-based theory of general language and thought, and (2) he sets out to refute the rival abstraction-based account. This paper examines the successes and failures of these two projects. I argue that Hume manages to articulate a plausible (...) theory of general ideas; indeed, a version of his account has defenders in contemporary cognitive science. But Hume fails to refute the abstraction-based account, and as a result, the early modern controversy ends in a stalemate, with both sides able to explain how we manage to speak and think in general terms. Although Hume fails to settle the controversy, he nevertheless advances it to a point from which we have yet to progress: the contemporary debate over abstract ideas in cognitive science has stalled on precisely this point. (shrink)

In Book I, part iv, section 2 of the Treatise, "Of scepticism with regard to the senses," Hume presents two different answers to the question of how we come to believe in the continued existence of unperceived objects. He rejects his first answer shortly after its formulation, and the remainder of the section articulates an alternative account of the development of the belief. The account that Hume adopts, however, is susceptible to a number of insurmountable objections, which motivates a reassessment (...) of his original proposal. This paper defends a version of Hume's initial explanation of the belief in continued existence and examines some of its philosophical implications. (shrink)

We must rethink our assessment of Hume’s theory of probabilistic inference. Hume scholars have traditionally dismissed his naturalistic explanation of how we make inferences under conditions of uncertainty; however, psychological experiments and computer models from cognitive science provide substantial support for Hume’s account. Hume’s theory of probabilistic inference is far from obsolete or outdated; on the contrary, it stands at the leading edge of our contemporary science of the mind.

A Neurocomputationial Perspective illustrates the fertility of the concepts and data drawn from the study of the brain and of artificial networks that model the...

In this book, Professor Pears examines the foundations of Hume's system as laid down in the first book of his Treatise, where his ideas are oresebted in their first fresh and undiluted form. The author steers a middle course between the two extreme views adopted in recent writings on Hume: that he relies exclusively on a theory of meaning, or that he relies exclusively on a theory of truth and evidence. Professor Pears argues that Hume's theory of ideas serves both (...) functions, and he examines in detail its application to three difficult problems: causation, personal identity, and sense-perception. Hume's solutions are shown not to be theories which can be given a place in a standard classification of philosophical theories, but rather to depend upon a subtle form of naturalism not altogether unlike Wittgenstein's naturalism. (shrink)

The thoughts of three philosophers on three topics: meaning, causality, and objectivity, are the focus of this study.