[Avoidance reaction and defensive reflex in the rabbit based on hypothalamic stimulation inducing strokes of the paws].
In experiments on rabbits electrical stimulation of the medial hypothalamic area elicited a biphasic reaction: running during the current action and species-specific reaction of kicking the floor with the hind limbs in poststimulous period. Conditioning with acoustic stimulus led in the half of rabbits to elaboration of a habit of jumping on a safe platform in experimental model of active avoidance and to a weak conditioned reaction of kicking without running in the model of classical defensive reflex. The number of conditioned limb kicks was 7-10 times less than that of analogous responses to the reinforcing stimulus. With the increase of the number of combinations, the conditioned habit of kicking became deteriorated: the response became weaker and its latency more prolonged. The results of experiments are discussed in the light of Anokhin's theory of functional system of goal-directed behavioural act.
D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D002682:Chinchilla; D003214:Conditioning, Classical / Q000502:physiology*; D004558:Electric Stimulation; D004597:Electroshock; D004924:Escape Reaction / Q000502:physiology; D007033:Hypothalamus, Middle / Q000502:physiology*; D008297:Male; D011930:Reaction Time / Q000502:physiology; D013016:Sound
Reaktsii izbeganiia i oboronitel'nyĭ refleks u krolikov na osnove gipotalamicheskogo razdrazheniia, vyzyvaiushchego udary lapami.