marginally significantp < 0.05
With respect to the association between hemodynamic activations that differentiate the clinical group from the TD group (see Table S3a, S3b ) and ADHD severity scores, our results showed a marginally significant positive correlation (Spearman’s rho = 0.501, p < 0.05) between HbO values in right frontoparietal ROI in the 2-back condition and Conners’ ADHD index.