The Role of Sensory Features in Mediating Associations Between Autism Symptoms and Anxiety in Boys with Autism Spectrum Disorder.

To investigate possible correlates of generalised anxiety disorder (GAD) in young males with ASD, a test of the mediation effects of sensory features (SF) upon the association between ASD symptoms and GAD was conducted with 150 males aged 6 to 18 years. GAD data were obtained from parents of the boys and from the boys themselves; SF and ASD data were obtained from parents. Symptoms of ASD were found to influence elevated levels of parent-rated GAD indirectly through greater levels of sensory avoiding, and auditory-specific sensory behaviours correlated with parent-rated anxiety more strongly than other sensory modalities. There were no significant effects for the boys' self-rated GAD.