Journal
DEVELOPMENTAL SCIENCE
Volume 13, Issue 1, Pages 244-251Publisher
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1467-7687.2009.00882.x
Keywords
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Funding
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT [P30HD015052] Funding Source: NIH RePORTER
- NICHD NIH HHS [P30 HD015052, P30 HD015052-27, P30HD15052] Funding Source: Medline
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We compared working memory (WM) for the location of social versus non-social targets in infant siblings of children with Autism Spectrum Disorders (sibs-ASD, n = 25) and of typically developing children (sibs-TD, n = 30) at 6.5 and 9 months of age. There was a significant interaction of risk group and target type on WM, in which the sibs-ASD had better WM for non-social targets as compared with controls. There was no group by stimulus interaction on two non-memory measures. The results suggest that the increased competency of sibs-ASD in WM (creating, updating and using transient representations) for non-social stimuli distinguishes them from sibs-TD by 9 months of age. This early emerging strength is discussed as a developmental pathway that may have implications for social attention and learning in children at risk for ASD.
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