[Establishment of interhemispheric asymmetry of transcallosal potentials in the sensomotor cortex of cats].
In acute experiments on 1 to 21-day old kittens immobilized with diplacin, a study was made of asymmetry of transcallosal responses (TCR) in the sensorimotor cortex. Interhemispheric asymmetry was detected by the positive and negative phases of the responses which was of an individual nature. In the course of development, the asymmetry of the TCR positive component virtually remained unchanged, while that of the negative component increased in size and incidence. Basic types of interhemispheric responses asymmetry were defined (qualitative, quantitative, topographic and quantitative-topographic) and its properties were established; partiality of dominance, callosal nature and dynamics. The interrelation of both TCR components was shown in the formation of the asymmetry and two its forms were revealed: synchronous and asynchronous.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology; D002415:Cats; D003337:Corpus Callosum / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D009044:Motor Cortex / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D013003:Somatosensory Cortex / Q000502:physiology*
Stanovlenie mezhpolusharnoĭ asimmetrii transkallozal'nykh potentsialov v sensomotornoĭ kore kotiat.