[Evoked potentials in cortical and subcortical structures of the visual system to photic and acoustic stimuli under conditions of early light deprivation].
Rabbits raised during one month in the dark have exhibited a lower amplitude and longer peak latencies of evoked potentials (EP) to photic stimuli in the visual cortex and the lateral geniculate body with a simultaneous increase of amplitude and decrease of EP latencies in these formations to acoustic stimuli. Similar changes have been observed in the EP amplitude as well as unvaried latencies in the superior colliculus. An assumption has been made that under light deprivation monosensory units change after the type of function deficit, while polysensory ones, change after activity increase type. The later sets in as a result of compensatory processes due to enhanced activity from the receptors of other sensory systems (auditory, olfactory, somaestetic, and others).
D000818:Animals; D001307:Auditory Perception / Q000502:physiology*; D005071:Evoked Potentials; D005829:Geniculate Bodies / Q000502:physiology; D011817:Rabbits; D011930:Reaction Time; D012683:Sensory Deprivation; D013477:Superior Colliculi / Q000502:physiology; D014785:Vision, Ocular; D014793:Visual Cortex / Q000502:physiology; D014795:Visual Pathways / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*
Vyzvannye potentsialy v korkovykh i podkorkovykh strukturakh zritel'noĭ sistemy na svetovye i zvukovye stimuly v usloviiakh ranneĭ svetovoĭ deprivatsii