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Language control and lexical competition in bilinguals: An event-related fMRI study
In: CEREB CORTEX , 18 (7) 1496 - 1505. (2008) (2008)
Abstract: 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.
Keyword: ANTERIOR CINGULATE CORTEX; BASAL GANGLIA; BRAIN; cognitive control; event-related functional magnetic resonance imaging; IMAGE AGREEMENT; language selection; left hemisphere; LEFT PREFRONTAL CORTEX; NAME AGREEMENT; NEURAL BASIS; picture naming; task selection; VISUAL COMPLEXITY; WORKING-MEMORY
URL: http://discovery.ucl.ac.uk/119926/
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2
Language control and lexical competition in bilinguals: an event-related FMRI study.
In: Cerebral Cortex, vol. 18, no. 7, pp. 1496-1505 (2008)
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3
Dissociating the semantic relation and language effects in the bilingual brain: an event-related potential study
Khateb, A.; Pegna, A. J.; Michel, C. M.. - : WILEY-BLACKWELL, 2008
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4
Rhyme processing in the brain: An ERP mapping study
In: INT J PSYCHOPHYSIOL , 63 (3) 240 - 250. (2007) (2007)
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5
Language selection in bilinguals: a spatio-temporal analysis of electric brain activity.
In: International Journal of Psychophysiology, vol. 65, no. 3, pp. 201-13 (2007)
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6
Rhyme processing in the brain: an ERP mapping study.
In: International Journal of Psychophysiology, vol. 63, no. 3, pp. 240-250 (2007)
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7
Transient crossed aphasia evidenced by functional brain imagery
In: NEUROREPORT , 15 (5) 785 - 790. (2004) (2004)
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8
Variability of fMRI activation during a phonological and semantic language task in healthy subjects
In: HUM BRAIN MAPP , 23 (3) 140 - 155. (2004) (2004)
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9
Variability of fMRI activation during a phonological and semantic language task in healthy subjects.
In: Human Brain Mapping, vol. 23, no. 3, pp. 140-155 (2004)
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10
Transient crossed aphasia evidenced by functional brain imagery.
In: Neuroreport, vol. 15, no. 5, pp. 785-790 (2004)
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11
Transient crossed aphasia evidenced by functional brain imagery
Khateb, A; Martory, MD; Annoni, JM. - : LIPPINCOTT WILLIAMS & WILKINS, 2004
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12
Variability of fMRI activation during a phonological and semantic language task in healthy subjects
Seghier, ML; Lazeyras, F; Pegna, AJ. - : WILEY, 2004
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13
Processing of semantic categorical and associative relations: an ERP mapping study.
In: International Journal of Psychophysiology, vol. 49, no. 1, pp. 41-55 (2003)
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14
L'examen neuropsychologique en pratique quotidienne [Neuropsychological test in daily practice]
In: Revue médicale de la Suisse romande, vol. 123, no. 4, pp. 263-7 (2003)
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15
Processing of semantic categorical and associative relations: an ERP mapping study
Khateb, A; Michel, CM; Pegna, AJ. - : ELSEVIER SCIENCE BV, 2003
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16
Dynamics of brain activation during an explicit word and image recognition task: an electrophysiological study.
In: Brain Topography, vol. 14, no. 3, pp. 197-213 (2002)
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17
Language representation in a patient with a dominant right hemisphere: fMRI evidence for an intrahemispheric reorganisation
In: NEUROREPORT , 12 (13) 2785 - 2790. (2001) (2001)
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18
The time course of semantic category processing in the cerebral hemispheres: an electrophysiological study.
In: Brain Research. Cognitive brain research, vol. 10, no. 3, pp. 251-264 (2001)
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19
Semantic category and rhyming processing in the left and right cerebral hemisphere
In: Laterality, vol. 5, no. 1, pp. 35-53 (2000)
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20
Semantic category and rhyming processing in the left and right cerebral hemisphere
Khateb, A; Pegna, AJ; Michel, CM. - : ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2000
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