Demographic and behavioral characteristics.

1For ADI-R and ADOS scores.2Independent sample t-tests. All p values were not corrected for multiple comparisons.3Levene’s Test for Equality of Variances showed significant non-equal variances, therefore equal variance was not assumed in the statistical tests.4N = 32 for MA, N = 29 for FA.5Distribution of scores significantly deviant from normal, therefore non-parametric Mann-Whitney tests were performed for group comparison of ADOS algorithm scores.MC = neurotypical control group male adults;MA = male adults with ASC;FC = neurotypical control group female adults;FA = female adults with ASC;SD = standard deviation; ns = non-significant (p>0.05);ADI-R = Autism Diagnostic Interview-Revised; RSB: repetitive, restrictive and stereotyped behavior; ADOS: Autism Diagnostic Observation Schedule; S + C: ADOS ‘social interaction + communication’ total scores.