The mathematical theory of communication.

According to a widespread view the lexicon is a kind of appendix to the grammar, whose function is to list what is unpredictable and irregular about the words of a language. In more recent studies it has been acquiring a rich internal organization of its own and is becoming recognized as the site of pervasive grammatical regularities. The particular approach to the lexicon that I will assume in this paper comes out of this trend, integrating several ideas from work on (...) both morphology and phonology in the seventies. I shall begin by outlining the central assumptions and their motivation, and proceed to a series of issues raised by this framework which,have to do with the proper formulation of word—formation processes. (shrink)

Memory is fleeting. New material rapidly obliterates previous material. How, then, can the brain deal successfully with the continual deluge of linguistic input? We argue that, to deal with this “Now-or-Never” bottleneck, the brain must compress and recode linguistic input as rapidly as possible. This observation has strong implications for the nature of language processing: (1) the language system must “eagerly” recode and compress linguistic input; (2) as the bottleneck recurs at each new representational level, the language system must build (...) a multilevel linguistic representation; and (3) the language system must deploy all available information predictively to ensure that local linguistic ambiguities are dealt with “Right-First-Time”; once the original input is lost, there is no way for the language system to recover. This is “Chunk-and-Pass” processing. Similarly, language learning must also occur in the here and now, which implies that language acquisition is learning to process, rather than inducing, a grammar. Moreover, this perspective provides a cognitive foundation for grammaticalization and other aspects of language change. Chunk-and-Pass processing also helps explain a variety of core properties of language, including its multilevel representational structure and duality of patterning. This approach promises to create a direct relationship between psycholinguistics and linguistic theory. More generally, we outline a framework within which to integrate often disconnected inquiries into language processing, language acquisition, and language change and evolution. (shrink)