Subject-induced reinforcement of head lifting in the prone position. A case report.
D002675:Child, Preschool; D005260:Female; D006257:Head / Q000502:physiology*; D006801:Humans; D008607:Intellectual Disability / Q000503:physiopathology / Q000628:therapy; D009068:Movement; D026741:Physical Therapy Modalities / Q000379:methods; D011187:Posture; D012054:Reinforcement, Psychology