Comparison of Rsa during a Relaxation Task Between ASD, Anxiety, & Controls (original) (raw)

Abstract

Background: Respiratory sinus arrhythmia (RSA), a measure of heart rate variability, reflects the action of the parasympathetic nervous system on heart rate. A higher RSA is associated with better physical and emotional health, and a more adaptive response to changing environmental demands. Recent studies have used RSA to better understand the anxiety symptoms and social deficits in ASD. Social impairment is a defining feature of ASD, and anxiety is a commonly occurring comorbid condition with rates at approximately 40%. To our knowledge no studies have yet compared RSA for individuals with ASD with and without anxiety to individuals with an anxiety disorder alone. Objectives: The aim of this study was to compare RSA during a relaxing task across four groups of participants who were well-characterized using gold standard measures for ASD (i.e., the ADOS) and Anxiety (i.e., the ADIS). It was hypothesized that individuals with ASD regardless of their anxiety status would have a lower ...

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