Attention deficit hyperactivity disorder (ADHD) lacks validated biomarkers for tracking symptom trajectories or guiding treatment selection in youth. Here we quantify individual deviations from normative age-related trajectories of white-matter structural connectivity across two independent datasets: 6,687 typically developing and 1,114 ADHD scans from a longitudinal developmental cohort, and 355 typically developing and 477 ADHD participants from an independent cohort. Youths with ADHD showed…
