Digit span in individuals with Down syndrome and in typically developing children: Temporal aspects

Author(s): Chapman, R.

Journal/Book: J Speech Lang Hear Res. 2000; 43: 10801 Rockville Pike, Rockville, MD 20852-3279, USA. Amer Speech-Language-Hearing Assoc. 609-620.

Abstract: This study explored factors influencing digit span performance in individuals with Down syndrome. The Following questions were asked: Is there a deficit in the phonological loop, either in articulatory rehearsal (measured in speaking rate and recall latency] or in the passive store (measured in recall duration)? Is reduced auditory short-term memory associated with a language production deficit? Thirty five adolescents with trisomy 21 Down syndrome were compared to 35 mental-age-matched and 35 language-production-matched controls. There was no group difference in speaking rate. The DS group had shorter digit spans than the MA controls. Language production level accounted for substantial variance in digit span in individuals with Down syndrome.

Note: Article Seung HK, Univ Texas, Coll Hlth Sci, El Paso,TX 79902 USA

Keyword(s): Down syndrome; digit span; working memory; phonological loop; language production deficit; SHORT-TERM-MEMORY; WORKING-MEMORY; HEARING-LOSS; SPEECH RATE; RECALL; DISSOCIATION; ADOLESCENTS; HYPOTHESES; REHEARSAL; DISORDERS

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