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1
Functionally distinct contributions of the anterior and posterior putamen during sublexical and lexical reading.
In: Front Hum Neurosci , 7 , Article 787 . (2013) (2013)
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2
Convergence, Degeneracy, and Control
In: In: (2013) (2013)
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3
Language proficiency modulates the engagement of cognitive control areas in multilinguals
In: Cortex , 49 (3) 905 - 911. (2013) (2013)
Abstract: Language proficiency should modulate the regions involved in language control in predictable ways during language switching. However, prior studies reveal inconsistent effects on the regions involved in language monitoring [pre-Supplementary Motor Area/Anterior Cingulate Cortex (pre-SMA/ACC)] and language selection (left caudate) conceivably because variations in relative proficiency are confounded with other between-group differences. We circumvented this problem in an fMRI (functional Magnetic Resonance Imaging) study of overt picture naming in trilingual participants. In this case, the difference between a high-proficient and a low-proficient further language can be assessed within subjects with no between-group confound. We also used a monolingual group to assess the neural correlates of switching between two categories of response within the same language. We report a novel result: relative language proficiency dissociates response of the pre-SMA/ACC and left caudate during language switching. Switching between languages increased pre-SMA/ACC response regardless of proficiency differences. By contrast, left caudate response did vary with proficiency differences. Switching from the most to the least proficient language increased the response. Within-language switching, as contrasted with between-language switching, elicited a comparable increase in pre-SMA/ACC response but a decrease in left caudate response. Taken together, our data support a wider role of pre-SMA/ACC in task monitoring and establish the critical role of the left caudate in the selection of the less proficient language in language switching. © 2012 Elsevier Ltd.
URL: http://discovery.ucl.ac.uk/1358376/
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4
Language control in bilinguals: The adaptive control hypothesis
In: Journal of Cognitive Psychology , 25 (5) 515 - 530. (2013) (2013)
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5
Auditory-motor interactions for the production of speech in native and non-native speech
In: The Journal of Neuroscience , 33 (6) pp. 2376-2387. (2013) (2013)
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6
Language control in bilinguals: The adaptive control hypothesis
In: Journal of Cognitive Psychology (2013) (2013)
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