Increased RD in sgCB and PMC was significantly correlated with the ADHD-associated symptom severity scores in the whole study sample (the average RD of the spherical ROIs in sgCB (A–C) and PMC (D–F) is plotted with the parent inattentive T score (A, D), parent hyperactive-impulsive T score (B, E), and T score for sum of total raw scores (C, F). The ADHD patients and normal controls are represented by red square (■) and green triangle (▲), respectively. Correlation coefficient (R) and p value for each correlation analysis are displayed in the subplot. Color images available online at www.liebertpub.com/brain