title: Behavioral comparisons of mongoloid and nonmongoloid retarded persons: a review.
mesh_terms: D000293:Adolescent; D000328:Adult; D001143:Arousal; D001519:Behavior; D002648:Child; D002675:Child, Preschool; D003213:Conditioning, Psychological; D004314:Down Syndrome; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000145:classification*; D007360:Intelligence; D007858:Learning; D008297:Male; D008606:Mental Processes; D010465:Perception; D011930:Reaction Time; D014110:Touch; D014705:Verbal Behavior; D014796:Visual Perception