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01-04-2014 | Original Paper

Social Smiling and Its Components in High-Risk Infant Siblings Without Later ASD Symptomatology

Auteurs: Caitlin McMahon Nichols, Lisa V. Ibañez, Jennifer H. Foss-Feig, Wendy L. Stone

Gepubliceerd in: Journal of Autism and Developmental Disorders | Uitgave 4/2014

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Abstract

Impaired affective expression, including social smiling, is common in children with autism spectrum disorder (ASD), and may represent an early marker for ASD in their infant siblings (Sibs-ASD). Social smiling and its component behaviors (eye contact and non-social smiling) were examined at 15 months in Sibs-ASD who demonstrated later ASD symptomatology (Sibs-ASD/AS), those who did not (Sibs-ASD/NS), and low-risk controls (Sibs-TD). Both Sibs-ASD subgroups demonstrated lower levels of social smiling than Sibs-TD, suggesting that early social smiling may reflect elevated genetic vulnerability rather than a specific marker for ASD. Only the Sibs-ASD/AS demonstrated less eye contact and non-social smiling than Sibs-TD, suggesting that different processes, threshold effects, or protective factors may underlie social smiling development in the two Sibs-ASD subgroups.
Literatuur
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Metagegevens
Titel
Social Smiling and Its Components in High-Risk Infant Siblings Without Later ASD Symptomatology
Auteurs
Caitlin McMahon Nichols
Lisa V. Ibañez
Jennifer H. Foss-Feig
Wendy L. Stone
Publicatiedatum
01-04-2014
Uitgeverij
Springer US
Gepubliceerd in
Journal of Autism and Developmental Disorders / Uitgave 4/2014
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432
DOI
https://doi.org/10.1007/s10803-013-1944-2