All statistical analyses were performed using SPSS (SPSS Inc., Chicago, USA). Two-way group × gender analysis of variance (ANOVA) was conducted separately for the target and rare non-target conditions. For ERPs, separate ANOVAs were conducted for each component (N2a and b, P3a and b) and separately for amplitude and latency. Independence of P3 and N2 findings were examined via analysis of covariance. The associations between demographic, alcohol use and clinical variables, and the ERP measures, were examined using correlations and partial correlations.
