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Autism
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Visual disengagement in the infant siblings of children with an autism spectrum disorder (ASD)

Lisa V. Ibanez

University of Miami, USA

Daniel S. Messinger

University of Miami, USA, dmessinger{at}miami.edu

Lisa Newell

Indiana University of Pennsylvania, USA

Brittany Lambert

University of Miami, USA

Mark Sheskin

University of Miami, USA

Children with autism spectrum disorders (ASDs) are impaired in visually disengaging attention in both social and non-social contexts. These impairments may, in subtler form, also affect the infant siblings of children with ASD (ASD-sibs). We investigated patterns of visual attention (gazing) in 6-month-old ASD-sibs (n = 17) and the siblings of typically developing children (COMP-sibs: n =17) during the Face-to-Face/Still-Face Protocol (FFSF), in which parents are sequentially responsive, non-responsive, and responsive to their infants. Throughout the protocol, ASD-sibs shifted their gaze to and from their parents' faces less frequently than did COMP-sibs. The mean durations of ASD-sibs' gazes away from their parents' faces were longer than those of COMP-sibs. ASD-sibs and COMP-sibs did not differ in the mean durations of gazes at their parents' faces. In sum, ASD-sibs showed no deficits in visual interest to their parents' faces, but greater interest than COMP-sibs in non-face stimuli.

Key Words: at risk • autism spectrum disorders • disengagement • early deficits • siblings

Autism, Vol. 12, No. 5, 473-485 (2008)
DOI: 10.1177/1362361308094504
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