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ERIC Number: EJ1069691
Record Type: Journal
Publication Date: 2015-Aug
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0162-3257
Brief Report: A Longitudinal Study of Excessive Smiling and Laughing in Children with Angelman Syndrome
Adams, Dawn; Horsler, Kate; Mount, Rebecca; Oliver, Chris
Journal of Autism and Developmental Disorders, v45 n8 p2624-2627 Aug 2015
Elevated laughing and smiling is a key characteristic of the Angelman syndrome behavioral phenotype, with cross-sectional studies reporting changes with environment and age. This study compares levels of laughing and smiling in 12 participants across three experimental conditions [full social interaction (with eye contact), social interaction with no eye contact, proximity only] at two data points. No differences were noted in frequency of laughing and smiling over time in any condition. However, with age as a covariate, the frequency of laughing and smiling decreased over time in the full social interaction (with eye contact) condition only. As this is the first longitudinal study to explore these behaviors in Angelman syndrome, the results suggest a gene-environment-time interaction within the behavioral phenotype.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A