greater sway at age 15 coupled with lower amplitude of P300 before age 13 increases the risk for developing SUD in young adulthood 8-fold (Hill et al. 2009b). Using data from the Danish Longitudinal Study of Alcoholism, Manzardo et al. (2005) found that insufficient motor tone several days following birth and delays in age to sitting and walking significantly predicted those individuals that received a diagnosis of lifetime AUD. These investigators suggest that cerebellar abnormalties may be associated with these observed differences in motor tone that appear to predict the occurrence of AUD.