However, this approach increased the chances of revealing significant effects of SLC6A3. In this context, the fact that not a single interaction involving both SLC6A3 and ADHD was detected, speaks strongly for the main thesis of our paper, that is the independence of the effects of dopamine transporter gene and ADHD diagnosis in shaping attentional functioning across the studied age-range. The gene discussed is SLC6A3; the disease is attention deficit-hyperactivity disorder.