The current study suffered from a number of limitations. First, requiring participants to make accuracy judgments following every trial complicates investigation of the hypothesis that alcohol’s impairment of control can be characterized in terms of delayed recovery following failures. This additional task added around 3 seconds to the ITI, making direct comparisons to other studies using shorter ITIs somewhat difficult. The act of making overt accuracy judgments after each trial also could have affected the control requirements of the task. However, if anything, the longer ITI and addition of accuracy ratings should have worked against finding differences in conflict monitoring and performance adjustment between the groups on post-error trials, and thus the current finding that it takes at least 2 trials (on average) following an error for intoxicated participants to recover those control functions should be considered a lower bound.
