Neuropsychological approaches to bilingualism: A critical review
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Clinical and experimental studies which have examined the neuropsychological bases of language processing in bilinguals are reviewed and evaluated. Evidence from case studies of polyglot aphasics suggests that the neuropsychological organization of their languages is the same for most bilinguals but that cases of dissociation do occur. Two main factors — language specific and language acquisitional — which might account for dissociation are defined and empirical evidence relevant to each is considered. It is argued that while clinical case studies of bilinguals suffering language disruption following brain damage have been significant in isolating these factors, they have failed to establish their explanatory power, due in part to inadequate data bases and in part to weak hypothesis-testing procedures.A review of the experimental studies provides preliminary evidence that such factors may influence the pattern of hemispheric involvement in the language processing of bilinguals.The variables of age, stage and manner of second language acquisition are discussed in some detail. A theoretical framework integrating the available evidence is proposed and guidelines for further research are suggested.
DescriptionLiterature review and conceptual framework.
neurobiology of language
brain lateralization of language
lateralization in bilinguals
cognitive neuroscience of language
model of bilingual brain
second language proficiency
age of onset of bilingualism
neuropsychology of language
cerebral hemispheric involvement in language
- Faculty Publications 
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Vaid, Jyotsna; Lambert, Wallace E. (1979)The cognitive processing strategies of two groups of French-English bilinguals were studied by means of an auditory Stroop test designed to evaluate cerebral hemispheric involvement. An “early bilingual” group were bilingual ...
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