and matched controls (Schellekens et al., 2010; Padilla et al., 2011); however these studies were conducted on very small samples. Alcoholics generated larger ERN amplitudes than controls following incorrect and correct responses on the Eriksen flanker task (Padilla et al., 2011). Both groups showed evidence of posterror slowing. The amplitudes in the alcoholics were related to longer reaction time in correct trials, suggesting increased effort in alcoholics. Smaller negative amplitudes were associated with length of sobriety, suggesting a normalization of monitoring activity with extended abstinence.
