Comparative characteristics of the topography of functional interhemispheric asymmetry in the visual cortex following exposure to stimuli of different strength

It has been shown that most animals exhibit functional interhemispheric asymmetry in the visual cortex, which increases with a rise in the intensity of photic stimulation. Interhemispheric asymmetry is characterized by its bilateral origin and mozaic localization. In the intact brain the transcallos...

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Bibliographic Details
Published inZurnal vyss̆ej nervnoj dejatelnosti imeni I P Pavlova Vol. 26; no. 6; p. 1258
Main Authors Bianki, V L, Filippova, E B
Format Journal Article
LanguageRussian
Published Russia (Federation) 01.11.1976
Subjects
Animals
Brain Mapping
Cats
Corpus Callosum - physiology
Dominance, Cerebral
Evoked Potentials
Female
Functional Laterality
Male
Photic Stimulation - methods
Visual Cortex - physiology
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Summary:It has been shown that most animals exhibit functional interhemispheric asymmetry in the visual cortex, which increases with a rise in the intensity of photic stimulation. Interhemispheric asymmetry is characterized by its bilateral origin and mozaic localization. In the intact brain the transcallosal mechanisms provide for weakening a weak asymmetry and intensifying a strong one. This is due to different lateralization of the excitation focus which possesses dominant properties. A conclusion has been drawn that one of the functions of the callosal body consists in modulating the functional interhemispheric asymmetry.
ISSN:0044-4677