Fig. 1.

The steps taken to ensure acceptable data quality across all scans and data quality matching between groups. During “image quality” steps, subsets of data were selected based on visual inspection of each scan for artifacts in raw DWIs or FA maps. During “matching” steps, subsets of data were selected that enabled us to match ASD and TD groups for age, IQ, sex, and data quality measures. P values show the significance of the differences between the ASD and TD groups on the indicated dimensions for each column. Black-outlined rectangles denote the two cohorts of participants analyzed: the main cohort (Middle) and the stringent cohort (Bottom).