title: [Feedback inhibition in microsegments of the visual cortex].
abstract: Interaction between 3-4 neighbouring neurons in the visual cortex of awakening cats was examined using a cross-correlation analysis. In some microsystems neurons revealed a tendency towards synchronized activity indicating a shared excitatory input. In other microsystems asymmetrical interaction was observed: neurons with larger spike amplitudes exhibited excitatory effect on neurons with smaller spike amplitudes (latent period about 5 ms) and neurons with small spike amplitudes inhibited neurons with large spike amplitudes (latent period 1-8 ms, duration of inhibition 30-200 ms). Suggestions were made about the existence of recurrent inhibition and inhibitory interneurons in microsystems of the visual cortex.
mesh_terms: D000818:Animals; D002415:Cats; D004594:Electrophysiology; D005246:Feedback; D007395:Interneurons / Q000502:physiology; D009433:Neural Inhibition; D011930:Reaction Time / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*
vernacular_title: O vozvratnow tormozhenii v mikrouchastkakh zritel'noĭ kory.