Figure 4.

The impact of ethanol on error monitoring. Post-error slowing, defined as the difference in response times following correct and incorrect trials, was reduced during ethanol sessions (P = 0.006). The decrease was evident both on discrimination and reversal trials (P = 0.048 and 0.038, respectively), but the data were collapsed across both types of trials due to the limited number of trials and associated greater variability in response times during reversal trials. Post hoc comparisons indicated significant impairments at both doses of ethanol compared to saline (P = 0.007 and 0.003 for 0.2 and 0.5 g/kg, respectively). *P < 0.05 versus saline.