This paper examines the impact that recent advances in clinical neurology, introspectionist psychology and neuroscience have upon the philosophical psycho?neural Identity Theory. Topics covered include (i) the nature and properties of phenomenal consciousness based on a study of the ?basic? visual field, i.e. that obtained in the complete dark, the Ganzfeld, and during recovery from occipital lobe injuries; (ii) the nature of the ?body?image? of neurology and its relation to the physical body; (iii) Descartes? error in choosing extension in space (...) as the criterion for distinguishing the physical and the mental; (iv) the technical distinction between sensing and perceiving; (v) why phenomenal Direct Realism is incorrect whereas epistemic DR and the representative theory are correct; (vi) the ontological and topological status of phenomenal space and physical space. This leads to considerations of the current ?binding problems? in neuroscience; the role of the brain mechanisms that construct the sensory fields of phenomenal consciousness; the ?homunculus? fallacy; the key difference between epistemic and non?epistemic perception as revealed by brain injury studies; and how the brain codes information, contrasting topological and vectorial coding, with particular reference to the binding problem. My conclusion is that the Identity Theory is incompatible with the scientific evidence from an integrated approach to modern introspectionist psychology, clinical neurology, and neuroscience. However, Cartesian Dualism is even more incompatible with the evidence. This leaves only two viable theories. The first is Bohr's theory of brain?consciousness complementarity. The second is the Broad?Price?Smythies theory of extension, which is a topological theory of the relation between phenomenal space and physical space. (shrink)

Locke’s claim that the primary signification of (most) words is an idea, or complex of ideas, has received different interpretations. I support the majority view that Locke’s notion of primary signification can be construed in terms of linguistic meaning. But this reading has been seen as making Locke’s account vulnerable to various criticisms, of which I consider two. First, it appears to make the account vulnerable to the charge that an idea cannot play the role that a word meaning should (...) play. I argue that the role Locke actually gives to signified ideas is not susceptible to this criticism. Second, it appears to make Locke guilty of at least some degree of semantic idealism. I argue that Locke is not guilty of this and that he makes a proper distinction between the non-referential relation that holds between a word and its primary signification and the referential relation that holds between a word and things the word is used to speak about. (shrink)

In order to make reliable predictions in any region of human activity, it is necessary to distinguish clearly what is based on experience and what is a construction of intellect. The theory of knowledge developed in the present paper is an attempt to devise a set of axioms that demarcate experience, as the only source of our knowledge of the external world, from the ideas, scientific models, and theories by means of which the scientific predictions are made. After a discussion (...) of the causality in relation to the laws of nature, the axioms of the expounded theory are formulated in the formalism of set theory. The theory is then applied to some problems in physics to demonstrate its usefulness. (shrink)

On a currently popular reading of Locke, an idea represents its cause, or what God intended to be its cause. Against Martha Bolton and my former self (among others), I argue that Locke cannot hold such a view, since it sins against his epistemology and theory of abstraction. I argue that Locke is committed to a resemblance theory of representation, with the result that ideas of secondary qualities are not representations.

When do two mental items belong to the same life? We could be content with the answer -just when they have certain volitional qualities in common. An affinity is noted between that theory and Berkeley's early doctrine of the self. Some rivals of the volitional theory invoke a spiritual or physical owner of mental items. They run a risk either of empty formality or of causal superstition. Other rivals postulate a non-transitive and symmetrical relation in the set of mental items. (...) They must allow in consequence either for joint ownership of one and the same mental item, or for incompatible simultaneous decisions by one and the same person, or for new forms of death. This makes them disquieting. Another rival invokes a transitive and symmetrical relation defined in terms of co-consciousness. Even that allows for incongruous simultaneities. The volitional theory is free from such disadvantages. (shrink)

Each person is perceived by others and by herself as an individual in a very strong sense, namely as a unique individual. Moreover, this supposed uniqueness is commonly thought of as linked with another character that we tend to attribute\nto persons (as opposed to stones or chairs and even non-human animals): a kind of depth, hidden to sensory perception, yet in some measure accessible to other means of knowledge. I propose a theory of strong or essential individuality. This theory is (...) introduced by way of a critical discussion of Van Inwagen’s and Baker’s ontologies of persons. Composition\nTheory and Constitution Theory are shown to be complementary, in their opposite strong and weak points. I argue that both\ntheories have unsatisfactory consequences concerning personal identity, a problem which the proposed theory seems to solve\nmore faithfully both to folk intuitions and the phenomenology of personal life. (shrink)

A conscious being is characterized by its ability to cope with the environment--to perceive it, sometimes change it, and perhaps reflect on it. Surprisingly, most studies of the mind's place in nature show little interest in such interaction. It is often implicitly assumed that the main questions about consciousness just concern the status of various entities, levels, etc., within the individual. The intertwined notions of " experience" and " consciousness" are considered. The predominant use of these notions in cognitive science (...) can be traced back to Cartesianism. What is important is the survival of the central methodological commitments despite seemingly profound changes of metaphysical outlook. The author argues that cognitive scientists typically assimilate perception to sensation, thereby ignoring ways in which descriptions of perception and descriptions of the environment are logically intertwined; that this involves methodological solipsism and an unacknowledged sceptical position that was originally part of Descartes' Dream argument; and that it is impossible to identify the object supposedly to be studied by a science of the phenomenal consciousness. A somewhat parallel argument is identified in Kant's critique of rationalist psychology. (shrink)

Hume concludes Book II of his Treatise of Human Nature with a section on the passion of curiosity, ‘that love of truth, which was the first source of all our enquiries’. At first sight, this characterisation of curiosity – as the motivating factor in that specifically human activity that is the pursuit of knowledge – may seem unoriginal. However, when Hume speaks of the ‘source of all our enquiries’, he is referring both to the universal human pursuit of knowledge and (...) to his own philosophical project. Seen in this light, his discussion of curiosity takes on a new significance, as it weaves together elements of his systematic account of human nature – notably, his theory of cognition and motivation – with observations about the pursuit of philosophy as well as the progress of the arts and sciences. In the present paper, I offer a reconstruction of Hume’s view on curiosity and its role in cognition and inquiry. (shrink)

Each person is perceived by others and by herself as an individual in a very strong sense, namely as a unique individual. Moreover, this supposed uniqueness is commonly thought of as linked with another character that we tend to attribute to persons (as opposed to stones or chairs and even non-human animals): a kind of depth, hidden to sensory perception, yet in some measure accessible to other means of knowledge. I propose a theory of strong or essential individuality. This theory (...) is introduced by way of a critical discussion of Van Inwagen’s and Baker’s ontologies of persons. Composition Theory and Constitution Theory are shown to be complementary, in their opposite strong and weak points. I argue that both theories have unsatisfactory consequences concerning personal identity, a problem which the proposed theory seems to solve more faithfully both to folk intuitions and the phenomenology of personal life. (shrink)

In this article, I discuss how Samuel Stanhope Smith advanced Reidian themes in his moral philosophy and examine their reception by Presbyterian revivalists Ashbel Green, Samuel Miller, and Archibald Alexander. Smith, seventh president and moral philosophy professor of the College of New Jersey (1779–1812), has received marginal scholarly attention regarding his moral philosophy and rational theology, in comparison to his predecessor John Witherspoon. As an early American philosopher who drew on the ideals of the Scottish Enlightenment including Common Sense philosophy, (...) Smith faced heightened scrutiny from American revivalists regarding the danger his epistemology presented to the institution of religion. The Scottish School of Common Sense was widely praised and applied in nineteenth-century American moral philosophy, but before the more general American acceptance of Common Sense, Smith already appealed to Reidian themes in his methodology and treatment of external sensations, internal sensations, intellectual powers, and active powers of the human mind. In this paper, I argue that Smith's use of Reidian themes for grooming his student's morality conflicted with the educational expectations from revivalists on Princeton's board of trustees who demanded more attention on orthodox theology. I identify Smith's notions of causation, liberty, and the moral faculty as primary reasons for this tension over Princeton's educational purpose during the first decade of the nineteenth century. (shrink)

I argue that transcendental idealism can be understood as a coherent and plausible account of experience. I begin by proposing an interpretation of the claim that we know only appearances that does not imply that the objects of experience are anything other than independently real objects. As I understand it, the claim here is abouthow objects appear to us, and not aboutwhat objects appear to us. After this, I offer a version of a correspondence account of veridical experience, in virtue (...) of which these independent entities can satisfy the contents of our experiences. Specifically, I claim that veridical experience can be construed as a kind of map of reality in itself, and that these independent entities satisfy the contents of our experiences when they are, given the proper method of projection, the objects mapped by those experiences. (shrink)