title: The back projection of kaleidoscopic patterns as a technique for eliciting verbalizations in an autistic child; a preliminary note.
mesh_terms: D001296:Audiovisual Aids; D001321:Autistic Disorder / Q000628:therapy*; D002675:Child, Preschool; D003216:Conditioning, Operant; D006801:Humans; D008297:Male; D008722:Methods; D009155:Mutism / Q000628:therapy; D013070:Speech Therapy