[Lateralization of hemispheric control over interference resistance].
Bilateral mechanisms, the hemisphere specifics and the sexual dimorphism of the visual system's resistance against hindrance were studied in conditioning and electrophysiological experiments in rats and cats. A right-sided specialization of the hemisphere control over visual recognition in noise and its resistance against hindrance was revealed in rats: activity of the right hemisphere aids to a greater extent to picking up of relevant signal out of noise than that of the left hemisphere. Role of bilateral mechanisms in the visual system's resistance against hindrance was described in cats and rats: after the callosotomy the picking up of relevant signals out of noise could either improve or get worse, depending on a number of conditions. The dominant mechanisms were shown to play a major part in formation of a certain level of the resistance. Both the intact and the split brain seems to be more resistant against hindrance and to have a greater asymmetry in males. The data obtained contribute to corroboration of presence of the brain lateral specialization in animals and are interpreted on the basis of the inductive-deductive hypothesis of the brain lateralization origin.
D000818:Animals; D002415:Cats; D003216:Conditioning, Operant / Q000502:physiology; D004292:Dominance, Cerebral / Q000502:physiology*; D005071:Evoked Potentials; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D008297:Male; D010775:Photic Stimulation; D051381:Rats; D011919:Rats, Inbred Strains; D012054:Reinforcement, Psychology; D012727:Sex Characteristics; D014796:Visual Perception / Q000502:physiology*
Lateralizatsiia polusharnogo kontrolia pomekhoustoĭchivosti.