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Roberts, Jane E.; Hatton, Deborah D.; Long, Anna C. J.; Anello, Vittoria; Colombo, John – Journal of Autism and Developmental Disorders, 2012
Aberrant attention is a core feature of fragile X syndrome (FXS), however, little is known regarding the developmental trajectory and underlying physiological processes of attention deficits in FXS. Atypical visual attention is an early emerging and robust indicator of autism in idiopathic (non-FXS) autism. Using a biobehavioral approach with gaze…
Descriptors: Child Development, Autism, Infants, Visual Perception
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Christensen, Lisa; Hutman, Ted; Rozga, Agata; Young, Gregory S.; Ozonoff, Sally; Rogers, Sally J.; Baker, Bruce; Sigman, Marian – Journal of Autism and Developmental Disorders, 2010
We observed infant siblings of children with autism later diagnosed with ASD (ASD siblings; n = 17), infant siblings of children with autism with and without other delays (Other Delays and No Delays siblings; n = 12 and n = 19, respectively) and typically developing controls (TD controls; n = 19) during a free-play task at 18 months of age.…
Descriptors: Siblings, Play, Mental Age, Autism