[The role of transcallosal responses with an initial negativity in the formation of a pattern of interhemispheric asymmetry].
Negative-positive transcallosal homotopic responses (THR) occurred 2 times less frequently than the positive-negative ones in male cats, whereas the same ratio was 1:3 in female cats. The foci of maximal activity of the 1st and 2nd types THR did not coincide. The 2nd type THR were shown to have a lesser number of interzonal interconnections than in the case of the positive-negative potentials. A probable role of the negative-positive THR in limitation, contrasting of the increased excitability focus as well as the specifics of contraphasic THRs interaction in respect to the sex of animals, is discussed.
Bianki
V L
VL
Shramm
V A
VA
Kharitonov
E V
EV
D000818:Animals; D001931:Brain Mapping; D002415:Cats; D002540:Cerebral Cortex / Q000502:physiology; D003337:Corpus Callosum / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D004558:Electric Stimulation; D005071:Evoked Potentials / Q000502:physiology; D005260:Female; D008297:Male; D011930:Reaction Time / Q000502:physiology; D012727:Sex Characteristics; D013997:Time Factors
Rol' transkallozal'nykh otvetov s nachal'noĭ negativnost'iu v formirovanii patterna mezhpolusharnoĭ asimmetrii.