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Tonnsen, Bridgette L.; Shinkareva, Svetlana V.; Deal, Sara C.; Hatton, Deborah D.; Roberts, Jane E. – American Journal on Intellectual and Developmental Disabilities, 2013
Anxiety is among the most impairing conditions associated with Fragile X syndrome (FXS) and is putatively linked to atypical physiological arousal. However, few studies have examined this association in young children with FXS. The authors examined whether patterns of arousal and behavior during an experimental stranger approach paradigm differ…
Descriptors: Anxiety, Genetic Disorders, Physiology, Arousal Patterns
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Watson, Linda R.; Roberts, Jane E.; Baranek, Grace T.; Mandulak, Kerry C.; Dalton, Jennifer C. – Journal of Autism and Developmental Disorders, 2012
Young boys with autism were compared to typically developing boys on responses to nonsocial and child-directed speech (CDS) stimuli. Behavioral (looking) and physiological (heart rate and respiratory sinus arrhythmia) measures were collected. Boys with autism looked equally as much as chronological age-matched peers at nonsocial stimuli, but less…
Descriptors: Metabolism, Stimuli, Arousal Patterns, Autism
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Roberts, Jane E.; Tonnsen, Bridgette; Robinson, Ashley; Shinkareva, Svetlana V. – American Journal on Intellectual and Developmental Disabilities, 2012
The present study contrasted physiological arousal in infants and toddlers with fragile X syndrome to typically developing control participants and examined physiological predictors early in development to autism severity later in development in fragile X syndrome. Thirty-one males with fragile X syndrome (ages 8-40 months) and 25 age-matched…
Descriptors: Intervals, Mental Retardation, Autism, Toddlers