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Zh Vyssh Nerv Deiat Im I P Pavlova. 2000 Nov-Dec;50(6):943-51.

[Interhemispheric interactions in right- and left-handed individuals based on EEG coherence data].

[Article in Russian]

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Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow.


The functions of interhemispheric EEG coherence were analyzed in 12 healthy subjects with the right individual profile of motor and sensor asymmetry and 7 subjects with the left profile in 2 experimental conditions: the state of rest and photostimulation of the central visual field. It was shown that in the rest condition the right-handed subjects have the higher values of EEG coherence in the thetal band in symmetrical frontal and central areas than the left-handed. These differences decreased for the frontal and central areas during activation caused by photostimulation but increased in the theta 2 and betal bands in symmetrical temporal areas (the coherence in the left-handed being higher). The difference in the EEG coherence between conditions was greater for the frontal and central areas in the right-handed than in the left-handed, especially, for the theta 1 and theta 2 bands. These findings suggest that the left-handed subjects have a less developed hierarchy of subcortical control of the functional state shifts than the right-handed.

[Indexed for MEDLINE]

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