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MacKay, D. N.; Bankhead, I. – Perceptual and Motor Skills, 1983
Groups of mentally retarded subjects matched for sex, chronological age, mental age, and length of institutionalization were observed on three reaction time tasks for which pre-response complexity varied. Down's Syndrome subjects did not differ from epileptic and undifferentiated retarded subjects in reaction time performance on any of the tasks.…
Descriptors: Auditory Stimuli, Downs Syndrome, Elementary Secondary Education, Epilepsy