As opposed to LRP6 and inactive GSK3β (Supplementary Figs. 6A and 6C), we observed a tendency toward increased levels of active β-catenin in ADHD NSCs, although this difference was not statistically significant (Supplementary Fig. 6B; standard lmer, #p = 0.068). The gene discussed is LRP6; the disease is attention deficit-hyperactivity disorder.