title: Differential reinforcement of the human pupillary response.
mesh_terms: D000328:Adult; D003071:Cognition; D003214:Conditioning, Classical; D003216:Conditioning, Operant; D003250:Constriction; D004106:Dilatation; D006801:Humans; D008297:Male; D011680:Pupil / Q000502:physiology*; D012057:Reinforcement, Verbal