title: Conjugate control of motor activity in mentally retarded persons.
mesh_terms: D000328:Adult; D001288:Attention; D005260:Female; D006801:Humans; D008607:Intellectual Disability; D008027:Light; D008297:Male; D009040:Motion Pictures; D009043:Motor Activity; D010775:Photic Stimulation; D012055:Reinforcement Schedule; D014465:Ultrasonics; D014796:Visual Perception