Abstract:
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Adequate sleep in children is important for memory, learning, emotion and behavior regulation, and other executive functions. Actigraphic assessment of sleep is cost-effective and permits monitoring of activity for extended periods of time to infer sleep-wake patterns. Despite the increasing popularity of actigraphy, however, whether or not it can accurately detect nocturnal awakenings is of particular concern in studies of children with fragmented sleep. Videosomnography provides another method of recording sleep. Subjective sleep measurement includes parent-reported sleep hours. Sleep studies often examine aggregate measures of sleep duration (usually over one night). We analyze the awakening data without aggregating the night time awakenings and we evaluate the accuracy of actigraphy compared with videosomnography and sleep diary in detecting the number and duration of night time awakenings, in 3 groups of preschool-aged children: children with autism, developmentally delayed children without autism, and typically developing children.
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