title: Supression of a retardate's tongue protrusion by contingent imitation: a case study.
mesh_terms: D001521:Behavior Therapy; D002648:Child; D003463:Cues; D006801:Humans; D007100:Imitative Behavior; D008607:Intellectual Disability / Q000150:complications*; D008297:Male; D014061:Tongue Habits; D014796:Visual Perception