Fig. 3

Interaction between parent-reported and observed sensory over-responsivity (SOR) predicting heart rate responses to auditory stimuli. Figures depict inter-beat interval (IBI) change up to 30 s post-stimulus onset compared to the 5-seconds of inter-trial interval (ITI) rest prior to the stimulus, for (a) autistic (ASD) participants had high observed auditory SOR and (b) ASD participants with low observed auditory SOR, divided with a median split. Each figure shows differences between youth who had high parent-reported auditory SOR (green) or low parent-reported auditory SOR (purple). In the group who had high observed SOR only, youth with high parent-reported auditory SOR showed reduced heart rate deceleration in response to sensory stimulation compared to those who had low parent-reported SOR