[Interhemispheric asymmetry in the interaction of the transcallosal and ascending flows of excitation in the cat visual cortex].
Interhemispheric interrelationships in different temporal combinations of transcallosal stimulation and monocular photostimulation, were studied in 20 immobilized cats by means of topographic recordings of homotopic EPs in visual cortex. An interhemispheric asymmetry of the amplitude and time parameters of the EPs was regularly found. The asymmetry of ipsilateral visual EPs was the highest, the asymmetry of transcallosal EP was middle and the asymmetry of visual EP was minimal under the condition of contralateral eye stimulation. The transcallosal interaction is assumed to be an important factor of formation of the specialization in the brain hemispheres.
Bozhko
G T
GT
Shramm
V A
VA
D000818:Animals; D002415:Cats; D003337:Corpus Callosum / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005260:Female; D008297:Male; D010775:Photic Stimulation; D013788:Thalamus / Q000502:physiology; D013997:Time Factors; D014793:Visual Cortex / Q000502:physiology*
Mezhpolusharnaia asimmetriia vzaimodeĭstviia transkalloznal'nogo i voskhodiashchego potokov vozbuzhdeniia v zritel'noĭ kore koshki.