Language control and lexical competition in bilinguals: an event-related FMRI study

Article Article scientifique Article Language control and lexical competition in bilinguals: an event-related FMRI study eng 2008 author Abutalebi Jubin author Annoni Gian-Maria 133986 author Zimine Ivan author Pegna Alan 31713 author Seghier Mohamed L. author Lee-Jahnke Hannelore 25428 author Lazeyras François 512748 author Cappa Stefano F. author Khateb Asaid 24224 1496-1505 10.1093/cercor/bhm182 17947346 1047-3211 http://cercor.oxfordjournals.org/cgi/content/full/18/7/1496 Language selection (or control) refers to the cognitive mechanism that controls which language to use at a given moment and context. It allows bilinguals to selectively communicate in one target language while minimizing the interferences from the nontarget language. Previous studies have suggested the participation in language control of different brain areas. However, the question remains whether the selection of one language among others relies on a language-specific neural module or general executive regions that also allow switching between different competing behavioral responses including the switching between various linguistic registers. In this functional magnetic resonance imaging study, we investigated the neural correlates of language selection processes in German-French bilingual subjects during picture naming in different monolingual and bilingual selection contexts. We show that naming in the first language in the bilingual context (compared with monolingual contexts) increased activation in the left caudate and anterior cingulate cortex. Furthermore, the activation of these areas is even more extended when the subjects are using a second weaker language. These findings show that language control processes engaged in contexts during which both languages must remain active recruit the left caudate and the anterior cingulate cortex (ACC) in a manner that can be distinguished from areas engaged in intralanguage task switching. Adult Brain Mapping/methods Cerebral Cortex/physiology Cognition/physiology Evoked Potentials/physiology Female Humans Magnetic Resonance Imaging/methods Male Multilingualism Semantics Speech/physiology Dewey 418.02 Dewey 616.0757 Dewey 616.8 61 Département des neurosciences cliniques 226 62 Département de radiologie et informatique médicale 227 111 Département de traduction 91 false 284 Groupe Lazeyras Francois (IRM fonctionnelle et métabolique) 539 430 Neuropsychologie clinique appliquée et neurosciences cognitives 703 676 Unité de traduction allemande Cerebral cortex 18 7 5167d9ed-896f-47da-88a8-2ca45e3eb1f3 Article (Accepted version) Restricted Article.pdf 574225 application/pdf restrictedAccess Faculté de médecine / Section de médecine clinique / Département des neurosciences cliniques Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale Faculté de traduction et d'interprétation / Département de traduction

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Language control and lexical competition in bilinguals: an event-related FMRI study	Cerebral cortex			2008	949	0

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Lee-Jahnke, Hannelore