[Features of the dynamic reorganization of the receptive fields of visual neurons of the cerebral cortex and lateral geniculate body in the cat in response to changes in the parameters of photic stimulation].
Influence of parameters of local light stimulation of different points of receptive fields on characteristics of previously observed dynamic reorganization of recorded receptive fields of visual cortex and lateral geniculate neurons in time microintervals was studied in details in computer-controlled acute experiments on unanesthetized immobilized cats. The dependence of this process on the background illumination level, on intensity, contrast, area, duration, energy and orientation of a local rectangular or round light stimulus flashing in a random order at 100 points of the tested part of the visual field was determined. The analysis of the data obtained suggests a specificity of the influence of the background illumination level, intensity, area, duration and orientation of the stimulus on the dynamic reorganization of the receptive field. All the parameters were revealed to have a significant nonmonotonic influence on the receptive field parameters. The found effect is discussed for its probable functional significance and a possibility of its participation in process of information coding in the visual system.
D000818:Animals; D002415:Cats; D004594:Electrophysiology; D005829:Geniculate Bodies / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D010775:Photic Stimulation / Q000379:methods; D011601:Psychophysics; D013997:Time Factors; D014793:Visual Cortex / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*
Kharakteristiki dinamicheskoĭ perestroĭki retseptivnykh poleĭ zritel'nykh neĭronov kory bol'shikh polushariĭ i naruzhnogo kolenchatogo tela koshki pri izmenenii parametrov svetovoĭ stimuliatsii.