Abstract

The philosopher Jerry Fodor was a key figure alongside Noam Chomsky in the revolution that led to the renaissance of the cognitive sciences from around 1960. This chapter describes key difference between Chomsky and Fodor. It focuses on Chomsky's and Fodor's conceptions of modularity. The chapter discusses two ways of understanding Chomsky's proposal, in particular how it claims an underlying faculty is related to processing and performance. Chomsky is largely agnostic on this question; the commitments of his programme are to be found elsewhere. The most persuasive evidence for Fodorian modules, as for Chomskyan faculties, comes from dissociations. The chapter also reviews the evidential foundation of all versions of modularity: double dissociation (impairments of one or more mental abilities caused by accidents or other pathology which leave other abilities intact).