Christopher Gauker

A similarity space is a hyperspace in which the dimensions represent various dimensions on which objects may differ. The similarity space theory of concepts is the thesis that concepts are regions of similarity spaces that are somehow realized in the brain. Proponents of such a theory of concepts include Paul Churchland and Peter Gärdenfors. This paper argues that the similarity space theory of concepts is mistaken because regions of similarity spaces cannot serve as the components of judgments. It emerges that although similarity spaces cannot model concepts, they may model a kind of nonconceptual representation.

Language acquisition is often said to be a process of mapping words into pre-existing concepts. If that is right, then we ought to be able to obtain experimental evidence for the existence of concepts in prelinguistic children. One line of research that attempts to provide such evidence is the work of Paul Quinn, who claims that looking-time results show that four--month old infants form “category representations”. This paper argues that Quinn’s results have an alternative explanation. A distinction is drawn between conceptual thought and the perception of comparative similarity relations, and it is argued that Quinn’s results can be explained in terms of the latter rather than the former

For many purposes in pragmatics one needs to appeal to a context of utterance conceived as a set of sentences or propositions. The context of utterance in this sense is often defined as the set of assumptions that the speaker supposes he or she shares with the hearer. I argue by stages that this is a mistake. First, if contexts must be defined in terms of shared assumptions, then it would be preferable to define the context as the set of assumptionsthat the interlocutors really do share. Second, not all shared assumptions belong to the context, because not all are relevant. Third, hearers need not accept every member of the context, because some presuppositions are informative. Finally, presupposition coordination problems show that contexts may have contents that even the speaker does not accept. Contexts, we may conclude, are mind-transcendent. In one sense of the term a "presupposition" is an interlocutor's take on this mind-transcendent context.

Abstract In their book, Holism: A Shopper's Guide, Jerry Fodor and Ernest Lepore fail to distinguish between two kinds of holism. One of these is holism about meaning, which is indeed problematic. The other is holism about translation, which is not so clearly problematic. Moreover, the problem with the first sort is that it renders communication unintelligible, not that it rules out psychological laws. Further, Fodor and Lepore's criticisms of various contemporary holists are based on serious misreadings. In particular, Quine need not accept the conception of statements that they force on him, and Davidson and Dennett do not argue for the principle of charity in the ways Fodor and Lepore suppose. But Fodor and Lepore's question about the provenance of the principle of charity is a good one and deserves an answer