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ERIC Number: EJ904099
Record Type: Journal
Publication Date: 2007
Pages: 9
Abstractor: As Provided
Reference Count: 107
ISSN: ISSN-1080-4013
Down Syndrome: Cognitive Phenotype
Silverman, Wayne
Mental Retardation and Developmental Disabilities Research Reviews, v13 n3 p228-236 2007
Down syndrome is the most prevalent cause of intellectual impairment associated with a genetic anomaly, in this case, trisomy of chromosome 21. It affects both physical and cognitive development and produces a characteristic phenotype, although affected individuals vary considerably with respect to severity of specific impairments. Studies focusing on the cognitive characteristics of Down syndrome were reviewed, and while performance in most areas could be predicted based upon overall intellectual disability, relative weaknesses were consistently found to be associated with expressive language, syntactic/morphosyntactic processing, and verbal working memory. This profile of uneven deficits could result from a failure to develop typically automatic processing for speech perception and production, and this possibility is discussed along with its implications for intervention.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A