[Effect of strychninization of the visual cortex on evoked activity in the rabbit lateral geniculate body].
Changes in responses of low-frequency and high-frequency LGB neurons were studied on anesthetized and paralyzed rabbits after strichninization of the visual cortex. It was found that in the group of low-frequency neurons the average discharge frequency of responses increased and latencies decreased indicating a dominance of corticofugal facilitation. On the contrary, in the group of high-frequency neurons the average discharge frequency of responses decreased and latencies increased. This suggests a dominance of corticofugal inhibition. The existence of reciprocal corticofugal influences on the neurons of different components of the visual pathways is assumed.
D000818:Animals; D001931:Brain Mapping; D004558:Electric Stimulation; D005071:Evoked Potentials; D005829:Geniculate Bodies / Q000502:physiology*; D011817:Rabbits; D011930:Reaction Time; D013331:Strychnine / Q000494:pharmacology*; D014793:Visual Cortex / Q000187:drug effects*; D014795:Visual Pathways / Q000502:physiology; D014796:Visual Perception / Q000502:physiology
D013331:Strychnine
Vliianie strikhninizatsii zritel'noĭ kory na vyzvannuiu aktivnost' neĭronov naruzhnogo kolenchatogo tela krolika