Fig. 3From: Evidence for decreased parasympathetic response to a novel peer interaction in older children with autism spectrum disorder: a case-control studyPredicted RSA values by age differ in ASD and TD youth. The figure represents estimated RSA for children ages 10–13 years while controlling for time. Youth with ASD (solid line) demonstrate a slower rate of change in RSA compared to TD youth (dashed line). Markers represent average RSA of the entire task, and slopes (lines) represent projected linear change in RSA by age as estimated from linear mixed modelBack to article page