- Prediction of heterogeneity in intelligence and adult prognosis by genetic polymorphisms in the dopamine system among children with attention-deficit/hyperactivity disorder: evidence from 2 birth cohorts. Mill, J., Caspi, A., Williams, B.S., Craig, I., Taylor, A., Polo-Tomas, M., Berridge, C.W., Poulton, R., Moffitt, T.E. Arch. Gen. Psychiatry (2006)