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| Research article summary (published 18 Mar 2003): |
Gamma-band desynchronization in language areas reflects syntactic process of words.
Full Abstract
The aim of this study was to verify the relation between gamma-band activity and process of function words. We recorded the neuromagnetic signals in six healthy volunteers during silent reading of verbs (verb task) and forming of the past tenses (past-tense task) and investigated the spatio-temporal distribution of event-related desynchronization (ERD) and synchronization using synthetic aperture magnetometry. In both tasks, ERDs were observed simultaneously at multiple language-related areas. The left junctional area of inferior frontal sulcus and precentral sulcus and the left supramarginal gyrus showed stronger and/or longer-lasting ERDs in past-tense task than in verb task. This result suggests that the gamma-activities reflect the syntactic process of words.
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Author information
Author/s: Ihara, Aya (A); Hirata, Masayuki (M); Sakihara, Kotoe (K); Izumi, Hiromi (H); Takahashi, Yuko (Y); Kono, Kaoru (K); Imaoka, Hiroyuki (H); Osaki, Yasuhiro (Y); Kato, Amami (A); Yoshimine, Toshiki (T); Yorifuji, Shiro (S);
Affiliation: Department of Basic Laboratory Science, Osaka University Graduate School of Medicine, 1-7 Yamadaoka, Suita, Osaka 565-0871, Japan. aya-i@sahs.med.osaka-u.ac.jp
Journal and publication information
Publication Type: Journal Article
Journal: Neuroscience letters (Neurosci Lett), published in Ireland. (Language: eng)
Reference: 2003-Mar; vol 339 (issue 2) : pp 135-8
Dates: Created 2003/03/04; Completed 2003/04/04; Revised 2004/11/17;
PMID: 12614913, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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