Although psychopathy is significantly associated with antisocial behavior, previous research using cognitive control tasks with psychopathic offenders led us to predict that psychopathy would not be associated with poor performance in the current study. Contrary to expectation, psychopathic participants were also significantly more likely than controls to commit errors on incongruent trials regardless of level of anxiety (i.e., primary vs. secondary psychopathy). This finding suggests that the inhibitory deficit observed in this study is associated with a general “antisociality dimension” that cuts across psychopathy and other antisocial syndromes. This conclusion was further substantiated by statistical analyses which found that errors on incongruent trials were related to the variance shared by psychopathy scores and APD symptoms.