Dog Assisted Therapy Is Hypothesized to Lower Stress in Children With Autism Spectrum Disorder (ASD) And Children With Down Syndrome (DS), Which May Be Visible on a Physiological Level. In This Study, We Measured Heart Rate Variability (HRV) And Salivary

Dog Assisted Therapy is hypothesized to lower stress in children with Autism Spectrum Disorder (ASD) and children with Down Syndrome (DS), which may be visible on a physiological level. In this study, we measured Heart Rate Variability (HRV) and salivary cortisol of 20 children with DS or ASD at the beginning and end of 6 weekly sessions of Dog-Assisted Therapy. We found a decrease of cortisol levels during single sessions, but no overall effect after 6 sessions (6 weeks). The effect of Dog Assisted Therapy on the increase of HRV could not be confirmed. This study is one of the first to use physiological measurements to test the effects of DAT.