Rhyme processing in the brain: an ERP mapping study.

Détails

ID Serval
serval:BIB_3EC4ED65ADA7
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Rhyme processing in the brain: an ERP mapping study.
Périodique
International Journal of Psychophysiology
Auteur(s)
Khateb A., Pegna A.J., Landis T., Michel C.M., Brunet D., Seghier M.L., Annoni J.M.
ISSN
0167-8760
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
63
Numéro
3
Pages
240-250
Langue
anglais
Notes
Journal Article Research Support, Non-U.S. Gov't --- Old month value: Mar
Résumé
The event-related potential (ERP) N450 component has been described in rhyme detection tasks as a negative response elicited by non-rhyming words in comparison to rhyming ones. This response, which peaked around 450 ms over the midline and right hemisphere recording sites, has been subsequently suggested to start already at approximately 300 ms. Moreover, although, the phonological N450 has first been linked to the semantic N400 component, its cognitive nature and cerebral origin remained debated. In this study, we re-investigated the time course of the electrophysiological responses to rhyming and non-rhyming words and estimated their cerebral generators using source localization methods. Waveform analysis showed that, prior to the N450 response to non-rhyming, a slightly earlier negativity characterized the rhyming condition over left fronto-temporal electrodes and peaked at approximately 350 ms. The analysis of the ERP map series in terms of functional microstates revealed a specific map segment in the rhyming condition and another one in the non-rhyming condition. Source localization indicated that the rhyming-elicited microstate engaged predominantly left frontal and temporal areas while the non rhyming-specific response recruited temporal and parietal regions bilaterally. Our results suggest that, similar to the N400 component that is also induced by mismatch contexts, the N450 might rely on temporal generators.
Mots-clé
Adult, Brain, Brain Mapping, Evoked Potentials, Female, Humans, Language, Language Tests, Male, Pattern Recognition, Physiological, Reaction Time, Reference Values
Pubmed
Web of science
Création de la notice
25/01/2008 11:37
Dernière modification de la notice
20/08/2019 13:35
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