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Parent-Reported Temperament Trajectories Among Infant Siblings of Children with Autism |
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| Authors: | Mithi del Rosario Kristen Gillespie-Lynch Scott Johnson Marian Sigman Ted Hutman |
| Institution: | 1. Department of Psychiatry and Bio-behavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA 2. Department of Psychology, College of Staten Island, City University of New York, Staten Island, NY, USA 3. Department of Psychology, University of California, Los Angeles, Los Angeles, CA, USA 4. UCLA Center for Autism Research and Treatment, 760 Westwood Plaza, Suite 68-237, Los Angeles, CA, 90095-1759, USA |
| Abstract: | Temperament atypicalities have been documented in infancy and early development in children who develop autism spectrum disorders (ASD). The current study investigates whether there are differences in developmental trajectories of temperament between infants and toddlers with and without ASD. Parents of infant siblings of children with autism completed the Carey Temperament Scales about their child at 6, 12, 18, 24, and 36 months of age. Temperament trajectories of children with ASD reflected increases over time in activity level, and decreasing adaptability and approach behaviors relative to high-risk typically developing (TD) children. This study is the first to compare temperament trajectories between high-risk TD infants and infants subsequently diagnosed with ASD in the developmental window when overt symptoms of ASD first emerge. |
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