The EEG in acallosal children. Coherence values in the resting state: left hemisphere compensatory mechanism?

Détails

ID Serval
serval:BIB_F3126169BD72
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The EEG in acallosal children. Coherence values in the resting state: left hemisphere compensatory mechanism?
Périodique
Electroencephalography and Clinical Neurophysiology
Auteur(s)
Koeda T., Knyazeva M., Njiokiktjien C., Jonkman E.J., De Sonneville L., Vildavsky V.
ISSN
0013-4694[print], 0013-4694[linking]
Statut éditorial
Publié
Date de publication
12/1995
Volume
95
Numéro
6
Pages
397-407
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
Resting EEG interhemispheric and intrahemispheric coherences (ICoh and HCoh) in the theta, alpha and beta bands were studied in 7 patients with agenesis of the corpus callosum (5 children, aged 10-14 years, and 2 adults) and 2 groups of sex- and age-matched normal children and adults (42 subjects). In patients the ICohs (F3/F4, C3/C4, P3/P4, O1/O2) were lower than in the normal sample. The ICoh decrease, corresponding with the completeness of commissural agenesis, showed the essential role of the corpus callosum in interhemispheric EEG synchronization. A remarkable new fact was found, namely lower right hemisphere HCoh in the acallosal patients in comparison to the normals, suggesting reduced connectivity of the right hemisphere. It is assumed that the deviant HCoh patterns in the patients, most pronounced in the beta band, are indicative of compensatory left hemisphere mechanisms, accounting for a specific brain plasticity phenomenon in acallosal subjects.
Mots-clé
Adolescent, Adult, Brain Diseases/physiopathology, Brain Mapping, Child, Corpus Callosum/physiopathology, Electroencephalography, Female, Humans, Male
Pubmed
Web of science
Création de la notice
11/04/2008 13:23
Dernière modification de la notice
20/08/2019 17:20
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