title: Changes in the intensity of primary frustration during continuous nonreward.
mesh_terms: D000054:Acceleration; D000818:Animals; D001522:Behavior, Animal; D003214:Conditioning, Classical; D003213:Conditioning, Psychological; D005108:Extinction, Psychological; D005639:Frustration; D008124:Locomotion; D008297:Male; D009042:Motivation; D009043:Motor Activity; D051381:Rats; D012201:Reward