Cerebral specialization in young adults with Down syndrome.
Adults with and without Down syndrome performed a rapid unimanual finger-tapping task alone and while sound-shadowing high frequency words. For male subjects, the concurrent speech disrupted right-hand, but not left-hand performance. Females suffered finger-tapping decrements in both hands in the dual-task situation. These results provide no evidence for reverse (right hemisphere) lateralization of speech in individuals with Down syndrome.
D000293:Adolescent; D000328:Adult; D001288:Attention; D004292:Dominance, Cerebral; D004314:Down Syndrome / Q000523:psychology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D011597:Psychomotor Performance; D013068:Speech Production Measurement