Michel Paradis, professor emeritus i neurolingvistik, McGill University, Montreal, föreläser om "Bilingualism and language pathology: The cerebral representation of languages"

Tid och plats: Torsdag den 3 december kl 14-16 2009 i Hörsal D9

Abstract

An analysis of the various recovery patterns of bilingual individuals with aphasia points to a model of cerebral language representation in which there is only one common conceptual system differentially connected to as many language subsystems as languages that have been acquired by the speaker (The Three-Store Hypothesis). Clinical evidence across a number of cognitive diseases points to distinct representations of languages acquired early and languages acquired later in life. But there is no need to postulate any cerebral device that is not already available to unilinguals. What differentiates unilingual (and early bilingual) speakers from any type of late bilinguals is a quantitatively differential use of the same cerebral structures. The only difference is the extent to which bilinguals make use of parts of their verbal communication system, and different types of bilinguals will make differential use of these various parts.

Three elements of the 3-store hypothesis will be explored: (1) Lexical semantics and concepts are represented independently, (2) The nature of conceptual representations, their organization, their acquisition and use are the same in unilinguals and any type of bilinguals, and (3) the conceptual store is declarative whereas the language subsystems are procedural.