Hemispheric specialization for speech in retarded children.
Hemispheric asymmetries in retarded and normal children were examined in dichotic tests which followed extensive auditory-discrimination training and which required non-verbal responses to digits or words. Mean right-ear advantages were smaller for the retarded group than for the normal group. However, most retarded children individually showed clear right- or left-ear advantages and absolute ear advantages were similar for the two groups. These data suggest atypical, but not reduced, functional asymmetries for retarded children.
D000293:Adolescent; D001307:Auditory Perception / Q000502:physiology; D002648:Child; D004007:Dichotic Listening Tests; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008607:Intellectual Disability / Q000503:physiopathology* / Q000523:psychology; D008297:Male; D013067:Speech Perception / Q000502:physiology