title: Negativism in verbal and nonverbal responses of autistic children.
mesh_terms: D001321:Autistic Disorder / Q000175:diagnosis*; D002648:Child; D002653:Child Behavior Disorders / Q000175:diagnosis; D002675:Child, Preschool; D003674:Defense Mechanisms; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D009341:Negativism; D011581:Psychological Tests; D014705:Verbal Behavior