Reward shift and general activity in the rat.
D000818:Animals; D001522:Behavior, Animal; D003213:Conditioning, Psychological; D004328:Drive; D005247:Feeding Behavior; D005508:Food Deprivation; D005639:Frustration; D008297:Male; D008960:Models, Psychological; D009043:Motor Activity; D010775:Photic Stimulation; D051381:Rats; D012201:Reward