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

Details

Serval ID
serval:BIB_F3126169BD72
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The EEG in acallosal children. Coherence values in the resting state: left hemisphere compensatory mechanism?
Journal
Electroencephalography and Clinical Neurophysiology
Author(s)
Koeda T., Knyazeva M., Njiokiktjien C., Jonkman E.J., De Sonneville L., Vildavsky V.
ISSN
0013-4694[print], 0013-4694[linking]
Publication state
Published
Issued date
12/1995
Volume
95
Number
6
Pages
397-407
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
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.
Keywords
Adolescent, Adult, Brain Diseases/physiopathology, Brain Mapping, Child, Corpus Callosum/physiopathology, Electroencephalography, Female, Humans, Male
Pubmed
Web of science
Create date
11/04/2008 12:23
Last modification date
20/08/2019 16:20
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