title: Steady and transition states: effects of alternative activity on body-rocking in retarded children.
mesh_terms: D000293:Adolescent; D001519:Behavior; D001521:Behavior Therapy; D002648:Child; D002674:Child, Institutionalized; D003216:Conditioning, Operant; D005108:Extinction, Psychological; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D008297:Male; D012055:Reinforcement Schedule; D013239:Stereotyped Behavior