A preliminary 5 (Coronal location) × 3 (Lateral location) ANOVA revealed a Coronal × Lateral interaction, F(8, 480) = 35.9, p < .0001, indicating that the ERN was larger at midline than lateral locations and was particularly pronounced at the midline fronto-central electrode (FCz). Thus, the primary analysis was focused on data from FCz, using a 2 (Prime) × 2 (Target) × 3 (Beverage group) mixed ANOVA. This analysis showed a main effect of Beverage group, F(2, 60) = 14.2, p < .001; planned contrasts indicated that the ERN was significantly smaller in the alcohol group (M = −4.72 μV) than in the control (M = −7.51 μV), t(42) = 2.31, p < .05, and placebo groups (M = −11.40 μV), t(39) = 5.32, p < .001. The ERN also was larger in the placebo group than in the control group, t(39) = 3.10, p < .001. No other effects of interest were significant in this analysis.3
