Ventral and dorsal pathways of speech perception: An intracerebral ERP study.

Détails

ID Serval
serval:BIB_A03EC140FCE3
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Ventral and dorsal pathways of speech perception: An intracerebral ERP study.
Périodique
Brain and Language
Auteur(s)
Trébuchon A., Démonet J.F., Chauvel P., Liégeois-Chauvel C.
ISSN
1090-2155 (Electronic)
ISSN-L
0093-934X
Statut éditorial
Publié
Date de publication
2013
Volume
127
Numéro
2
Pages
273-283
Langue
anglais
Notes
Publication types: Journal ArticlePublication Status: ppublish
Résumé
Recent theory of physiology of language suggests a dual stream dorsal/ventral organization of speech perception. Using intra-cerebral Event-related potentials (ERPs) during pre-surgical assessment of twelve drug-resistant epileptic patients, we aimed to single out electrophysiological patterns during both lexical-semantic and phonological monitoring tasks involving ventral and dorsal regions respectively. Phonological information processing predominantly occurred in the left supra-marginal gyrus (dorsal stream) and lexico-semantic information occurred in anterior/middle temporal and fusiform gyri (ventral stream). Similar latencies were identified in response to phonological and lexico-semantic tasks, suggesting parallel processing. Typical ERP components were strongly left lateralized since no evoked responses were recorded in homologous right structures. Finally, ERP patterns suggested the inferior frontal gyrus as the likely final common pathway of both dorsal and ventral streams. These results brought out detailed evidence of the spatial-temporal information processing in the dual pathways involved in speech perception.
Pubmed
Web of science
Création de la notice
03/01/2014 10:43
Dernière modification de la notice
20/08/2019 16:06
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