Abstract

Recent years have seen a renewal of the perennial debate concerning innate ideas: Noam Chomsky has argued that much of our knowledge of natural languages is innate; Jerry Fodor has defended the innateness of most concepts. ;Part One concerns the historical controversy over nativism. On the interpretation there developed, nativists have defended two distinct theses. One, based on arguments from the poverty of the stimulus, is a psychological theory postulating special-purpose learning mechanisms. The other, deriving from arguments entailing that learning from experience is impossible, is the meta-psychological view that we can hope for no real explanation of how learning occurs. ;In Part Two, the views of contemporary nativists are discussed against this background. Fodor's claim that our concepts are 'triggered' rather than 'learned' provides no account of concept-acquisition. Instead, it expresses his view that concept-acquisition resists any psychological explanation. But while 'brute-causal' interaction with the world may be necessary to the fixation of reference--and hence to the attainment of concepts--it is insufficient. Mind-world interaction is 'cognitively mediated' and it is in explaining the nature of this mediation that psychology will play a role. ;Chomsky holds that we have a special-purpose faculty for learning language. His 'a posteriori' arguments from the poverty of the stimulus, being based on unsubstantiated empirical claims about the pld and the course of learning, are rejected. Another 'a priori' argument exists, however, involving only the general observation that since the pld contain little information about what is not a sentence, a special mechanism is required to prevent overgeneration. But negative data are lacking in every learning domain. So since it is implausible that all learning requires special faculties, there must be a general-purpose strategy that can skirt the 'negative evidence' problem. Whether it is used for language-learning remains moot. But what really motivates the Chomskian is his awe at what children achieve, namely, 'cognizance' of a grammar. Grammars prove, however, to be 'psychologically real' in such a weak sense that the phenomena of language mastery provides little grist to the nativist's mill.