Journal
BRAIN AND LANGUAGE
Volume 142, Issue -, Pages 36-44Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bandl.2015.01.004
Keywords
Bilingualism; fMRI; Speech production; Speech comprehension; First language
Funding
- Brainglot Project of the CONSOLIDER-INGENIO [CSD2007-00012]
- Ministerio de Economia y Competitividad [PSI2010-20168, PSI2013-47504-R]
- European Research Council under the European Community [613465-AThEME]
- Universitat Jaume I [P1-1B2012-38, P1-1B2011-09]
- Spanish Government
- ICREA Funding Source: Custom
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The present research used fMRI to measure brain activity in passive listening and picture-naming tasks with a group of early high proficient Spanish-Catalan bilinguals, in which Spanish was dominant, and a group of Spanish monolinguals. Both tasks were conducted in Spanish and the effect of cognateness was studied. The behavioural results showed slow naming responses in bilinguals. The fMRI results revealed that bilinguals and monolinguals differed only during the picture naming task. Unlike previous results, obtained mainly with L2, monolinguals displayed more activity in receptive language areas and less activity in the posterior cingulate cortex and right STG in the picture-naming task than bilinguals. As far as we know, this is the first study to investigate the neural basis of L1 processing in bilinguals and monolinguals by performing the task in the same language and in a monolingual context. The results indicate more efficient use of language networks in monolinguals because bilinguals utilised a more distributed network, which may imply subtle processing disadvantages. (C) 2015 Elsevier Inc. All rights reserved.
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