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Multilingualism and Cognitive Function in the Elderly Satoshi TAMIYA 1 1Himeji City Center for Developmental Medicine, Himeji, Japan Keyword: Aging , Bilingualism , Cognitive reserve , Dementia , Multilingualism pp.921-929
Published Date 2014/11/15
DOI https://doi.org/10.11477/mf.1405200024
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 The concept of cognitive reserve has been studied in relation to the onset of dementia in the field of geriatrics. It is generally accepted that an intellectually stimulating life contributes to the development of a cognitive reserve, which, in turn, is protective against the onset of dementia. Similarly, lifelong multilingualism has been shown to be advantageous for executive functioning in the brain. This, too, may contribute to the cognitive reserve as a kind of intellectual stimulation, and it has been reported that the time of dementia onset in multilingual individuals tends to be later than that in monolinguals. Studies related to this issue were reviewed, which were mostly conducted outside Japan. Studies by Ellen Bialystok's group in Canada were reviewed first, and then those of other research groups. Methodological issues such as controlling for confounding factors were challenging. In the final section, the possibility of multilingualism research to advance brain research in general is emphasized, along with the issues to be solved.


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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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