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  Neuroanatomical markers of individual differences in native and non-native vowel perception

Sebastian-Galles, N., Soriano-Mas, C., Baus, C., Díaz, B., Ressel, V., Pallier, C., et al. (2012). Neuroanatomical markers of individual differences in native and non-native vowel perception. Journal of Neurolinguistics, 25(3), 150-162. doi:10.1016/j.jneuroling.2011.11.001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-589C-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-C41D-E
Genre: Journal Article

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SebastianGalles_2012_Neuroanatomical.pdf (Publisher version), 449KB
 
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 Creators:
Sebastian-Galles, Nuria1, Author
Soriano-Mas, Carles2, 3, Author
Baus, Cristina1, Author
Díaz, Begoña4, Author              
Ressel, Volker1, Author
Pallier, Christophe5, Author
Costa, Albert1, 6, Author
Pujol, Jesus7, Author
Affiliations:
1Brain and Cognition Unit, University Pompeu Fabra, Barcelona, Spain, ou_persistent22              
2Department of Psychiatry, Bellvitge University Hospital, Barcelona, Spain, ou_persistent22              
3Carlos III Health Institute, Ministry of Science and Innovation, Barcelona, Spain, ou_persistent22              
4Max Planck Research Group Neural Mechanisms of Human Communication, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634556              
5Cognitive Neuroimaging Unit, Neurospin Center, Gif-sur-Yvette, France, ou_persistent22              
6Catalan Institution for Research and Advanced Studies, Barcelona, Spain, ou_persistent22              
7Institut d’Alta Tecnologia, Hospital del Mar, Barcelona, Spain, ou_persistent22              

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Free keywords: Individual differences; Speech perception; Brain anatomy
 Abstract: Although most human beings experience no difficulty in perceiving their native language, strong individual differences are observed for certain foreign phonemic contrasts. Diaz, Baus, Escera, Costa, and Sebastian-Galles (2008, Brain potentials to native phoneme discrimination reveal the origin of individual differences in learning the sounds of a second language. Proceedings of the National Academy of Sciences of the United States of America, 105, 16083–16088) reported a correlation between event-related potential (ERP) responses to native and non-native vowels in a group of early and highly-skilled bilinguals. In the present study, we compared the brain morphology of two groups of bilinguals who were equally proficient in their second language but differed in their perception of both native and non-native vowels. A whole brain, voxel-based morphometry analysis (VBM) revealed larger white matter volume in the right insulo/fronto-opercular region in individuals who exhibited poorer perceptual discrimination of native and non-native vowels. As the volume of the left Heschl’s gyri has previously been shown to correlate with the ability to perceive foreign phonemic contrasts (between consonants), we also measured the white and grey matter volumes of Heschl’s gyri in our subjects. We did not observe any significant relation between these volumes and vowel discrimination capabilities. This result allows the identification of anatomical brain differences related to individual differences in vowel perception. The present results add to the relatively unexplored area of the relationship between brain structure and language function in adult healthy population.

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Language(s): eng - English
 Dates: 2011-11-042012-05
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.jneuroling.2011.11.001
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Title: Journal of Neurolinguistics
  Other : J. Neurolinguist.
Source Genre: Journal
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Publ. Info: Tokyo : Pergamon
Pages: - Volume / Issue: 25 (3) Sequence Number: - Start / End Page: 150 - 162 Identifier: ISSN: 0911-6044
CoNE: /journals/resource/954926241467