Neurocognitive and behavioral outcomes of younger siblings of children with autism spectrum disorder at age five

Zachary E. Warren, Jennifer H. Foss-Feig, Elizabeth E. Malesa, Evon Batey Lee, Julie Lounds Taylor, Cassandra R. Newsom, Julie Crittendon, Wendy L. Stone

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Later-born siblings of children with Autism Spectrum Disorders (ASD) are at increased risk for ASD as well as qualitatively similar traits not meeting clinical cutoffs for the disorder. This study examined age five neurocognitive and behavioral outcomes of 39 younger siblings of children with ASD (Sibs-ASD) and 22 younger siblings of typically developing children (Sibs-TD) previously assessed in a longitudinal investigation starting in the second year of life. There were few group differences between Sibs-TD and Sibs-ASD on global measures of IQ, language, or behavior problems. Sibs-ASD did show vulnerabilities on measures of executive functioning, social cognition, and repetitive behaviors. These results highlight the importance of following sibling risk groups over an extended time period and employing measures targeting broader aspects of development.

Original languageEnglish (US)
Pages (from-to)409-418
Number of pages10
JournalJournal of Autism and Developmental Disorders
Volume42
Issue number3
DOIs
StatePublished - Mar 1 2012

Keywords

  • Autism
  • Behavior
  • Broad autism phenotype
  • Cognition
  • Language
  • Siblings

ASJC Scopus subject areas

  • Developmental and Educational Psychology

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    Warren, Z. E., Foss-Feig, J. H., Malesa, E. E., Lee, E. B., Taylor, J. L., Newsom, C. R., Crittendon, J., & Stone, W. L. (2012). Neurocognitive and behavioral outcomes of younger siblings of children with autism spectrum disorder at age five. Journal of Autism and Developmental Disorders, 42(3), 409-418. https://doi.org/10.1007/s10803-011-1263-4