title: The use of visual reinforcement audiometry (VRA) with profoundly retarded residents.
mesh_terms: D000293:Adolescent; D000328:Adult; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold; D002648:Child; D006801:Humans; D008607:Intellectual Disability; D009068:Movement; D009949:Orientation; D012054:Reinforcement, Psychology; D014796:Visual Perception