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  An effect of bilingualism on the auditory cortex

Ressel, V., Pallier, C., Ventura-Campos, N., Díaz, B., Roessler, A., Ávila, C., et al. (2012). An effect of bilingualism on the auditory cortex. The Journal of Neuroscience, 32(47), 16597-16601. doi:10.1523/JNEUROSCI.1996-12.2012.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-EFEA-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-CD5D-F
Genre: Journal Article

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 Creators:
Ressel, Volker1, Author
Pallier, Christophe2, Author
Ventura-Campos, Noelia3, Author
Díaz, Begoña4, Author              
Roessler, Abeba1, Author
Ávila, César3, Author
Sebastián-Gallés, Núria1, Author
Affiliations:
1Speech Acquisition and Perception Group, Department of Technology, Center for Brain and Cognition, University Pompeu Fabra, Barcelona, Spain, ou_persistent22              
2Cognitive Neuroimaging Unit, Neurospin Center, Institut national de la santé et de la recherche médicale, Paris, France, ou_persistent22              
3Department of Psychology, Jaume I University, Castellón de la Plana, Spain, ou_persistent22              
4Max Planck Research Group Neural Mechanisms of Human Communication, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, Germany, ou_634556              

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 Abstract: Two studies (Golestani et al., 2007; Wong et al., 2008) have reported a positive correlation between the ability to perceive foreign speech sounds and the volume of Heschl's gyrus (HG), the structure that houses the auditory cortex. More precisely, participants with larger left Heschl's gyri learned consonantal or tonal contrasts faster than those with smaller HG. These studies leave open the question of the impact of experience on HG volumes. In the current research, we investigated the effect of early language exposure on Heschl's gyrus by comparing Spanish–Catalan bilinguals who have been exposed to two languages since childhood, to a group of Spanish monolinguals matched in education, socio-economic status, and musical experience. Manual volumetric measurements of HG revealed that bilinguals have, on average, larger Heschl's gyri than monolinguals. This was corroborated, for the left Heschl's gyrus, by a voxel-based morphometry analysis showing larger gray matter volumes in bilinguals than in monolinguals. Since the bilinguals in this study were not a self-selected group, this observation provides a clear demonstration that learning a second language is a causal factor in the increased size of the auditory cortex.

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Language(s): eng - English
 Dates: 2012-09-2820122012-11-21
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1523/JNEUROSCI.1996-12.2012
PMID: 23175815
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Title: The Journal of Neuroscience
  Other : J. Neurosci.
Source Genre: Journal
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Publ. Info: Baltimore, MD : The Society
Pages: - Volume / Issue: 32 (47) Sequence Number: - Start / End Page: 16597 - 16601 Identifier: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187_1