[Responses of nervous elements of the visual cortex of the chipmunk Eutamias sibiricus to moving and stationary stimuli].
The receptive field organization of cortical units has been studied in experiments with testing by moving and stationary light spots. The size of the receptive fields varied from 3 degrees to 10 degrees. Receptive fields which were tested by a stationary light spot exhibited various types of organization. Some of the neurons produced extensive excitatory on- and off-responses to stimulation by a light spot. Neuronal excitation evoked by light decreased if the stimulus was near the field boundary. Some of the neurons produced either on- or off-responses in any point of the receptive field. A small part of neurons had receptive fields with on- and off-reactions in the center, and either on- or off-responses at the peripheral zones. Most of the neurons exhibited specialization with respect to high-speed motion.
D000818:Animals; D008027:Light; D009043:Motor Activity; D009474:Neurons / Q000502:physiology; D012377:Rodentia / Q000502:physiology*; D012589:Sciuridae / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology*
Reaktsii nervnykh elementov zritel'noĭ kory burunduka Eutamias sibiricus na dvizhuschchiisia i statsionarnyĭ stimuly