An effect of bilingualism on the auditory cortex
Autor/a
Ressel, Volker
Pallier, Christopher
Ventura-Campos, Noelia
Díaz Menéndez, Begoña
Roessler, Abeba
Ávila, César
Sebastián-Gallés, Núria
Data de publicació
2012-11ISSN
0270-6474
Resum
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.
Tipus de document
Article
Versió del document
Versió publicada
Llengua
English
Matèries (CDU)
61 - Medicina
81 - Lingüística i llengües
Paraules clau
Bilingüisme
Escorça cerebral
Català
Castellà
Llenguatge i llengües -- Ensenyament
Bilingüismo
Corteza cerebral
Lengua catalana
Lengua castellana
Lenguaje y educación
Bilingualism
Cerebral cortex
Catalan
Spanish
Language and languages -- Study and teaching
Pàgines
5
Publicat per
Society for Neuroscience
Col·lecció
32; 47
Publicat a
Journal of Neuroscience
Citació
Ressel, Volker; Pallier, Christopher; Ventura-Campos, Noelia [et al.]. An effect of bilingualism on the auditory cortex. Journal of Neuroscience, 2012, 32(47), p. 16597–16601. Disponible en: <https://www.jneurosci.org/content/32/47/16597>. Fecha de acceso: 5 nov. 2020. DOI: 10.1523/JNEUROSCI.1996-12.2012
Aquest element apareix en la col·lecció o col·leccions següent(s)
- Ciències de la Salut [745]
Drets
© 2012 the authors