ERIC Number: EJ1038452
Record Type: Journal
Publication Date: 2014-Apr
Abstractor: As Provided
Reference Count: 48
Social Smiling and Its Components in High-Risk Infant Siblings without Later ASD Symptomatology
Nichols, Caitlin McMahon; Ibañez, Lisa V.; Foss-Feig, Jennifer H.; Stone, Wendy L.
Journal of Autism and Developmental Disorders, v44 n4 p894-902 Apr 2014
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.
Descriptors: Affective Behavior, Nonverbal Communication, Children, Autism, Pervasive Developmental Disorders, Infants, Siblings, Symptoms (Individual Disorders), Comparative Analysis, Social Development, Genetic Disorders, Eye Movements
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A