ERP correlates of phoneme perception in speech and sound contexts.

Détails

ID Serval
serval:BIB_2EEF0F1F2A5B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
ERP correlates of phoneme perception in speech and sound contexts.
Périodique
Neuroreport
Auteur(s)
Celsis P., Doyon B., Boulanouar K., Pastor J., Démonet J.F., Nespoulous J.L.
ISSN
0959-4965 (Print)
ISSN-L
0959-4965
Statut éditorial
Publié
Date de publication
1999
Peer-reviewed
Oui
Volume
10
Numéro
7
Pages
1523-1527
Langue
anglais
Notes
Publication types: Clinical Trial ; Comparative Study ; Controlled Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
To address the question of the existence of a phonetic module for speech perception, event-related potentials were recorded using a 32 channel system in subjects performing a detection task where the target was the ambiguous, noise-like phoneme /f/ presented either among syllables (speech context) or among environmental sounds (non-speech context). Significant context effects were observed on the N2/P3 complex elicited by the target. In particular, a well localized N2b (250-280 ms) appeared at the left temporoparietal sites on the difference wave between contexts as the result of an enhanced negativity when the target was presented among non-speech stimuli. These findings suggest the involvement of the left temporoparietal region in autonomous, modular processes of speech perception.
Mots-clé
Acoustic Stimulation, Adult, Analysis of Variance, Cues, Evoked Potentials, Auditory/physiology, Female, Humans, Male, Phonetics, Sound, Speech Perception/physiology
Pubmed
Web of science
Création de la notice
24/03/2013 18:02
Dernière modification de la notice
03/03/2018 15:31
Données d'usage