The performance monitoring literature has shown that the P300 can also be measured following the presentation of feedback stimuli, and this P300 response appears functionally distinct from the FRN that follows the same stimuli (Frank, Woroch, & Curran, 2005; Yeung & Sanfey, 2004). Thus, we sought to determine whether the oddball P300 reduction associated with externalizing proneness generalizes to feedback stimuli. Evaluating this relationship across differing contexts is important for gaining understanding of the generality of P300-related processing deficits in individuals high in externalizing proneness.
