[Responses of neurons of the primary visual cortex to visual stimuli in the awake unrestrained rat].
In an experiment on alert unrestrained rats trained for instrumental reaction of retaining immobility, a study was made of the structure of receptive fields (RF) and the properties of responses to controlled visual stimuli of cortical neurones in the field 17. Most of the neurones by their characteristics did not differ from those of immobilized rats. The RF structure and the neuronal responses did not depend on the animals' behaviour, the level of their attention, excitation or motivation. Part of the neurones which did not respond to a wide set of light-dark stimuli presented on the screen, gave responses to natural objects or items of the surroundings. The results are discussed in connection with up to date concepts on information processing in the primary visual cortex of mammals.
D000818:Animals; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology; D003216:Conditioning, Operant / Q000502:physiology; D005502:Food; D006815:Hunger / Q000502:physiology; D007103:Immobilization; D051381:Rats; D012527:Satiation / Q000502:physiology; D013016:Sound; D014793:Visual Cortex / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*
Reaktsii neĭronov pervichnoĭ zritel'noĭ kory bodrstvuiushchikh nefiksirovannykh krys na zritel'nye stimuly.