title: Cognitive processing by subgroups of moderately mentally retarded children.
mesh_terms: D000293:Adolescent; D000328:Adult; D001307:Auditory Perception; D001925:Brain Damage, Chronic / Q000523:psychology; D002648:Child; D003071:Cognition; D004314:Down Syndrome / Q000523:psychology; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D007360:Intelligence; D008568:Memory; D014796:Visual Perception