GIT1 and attention deficit-hyperactivity disorder: Compared with the GIT1 C/T + DRD4 others group, the GIT1 C/T + DRD4 4R/4R group had significantly more commission errors (p < .001) and greater response time variability (p = .003) in the ADHD + HC group, as well as more omission errors and commission errors and greater response time variability (p = .001, p < .001, and p < .001, respectively) in the ADHD group (Figure 1).