Proceedings of the Annual Meeting of the Cognitive Science Society

The feedback-related negativity (FRN) is an event-related potential that differentiates between positive and negative feed-back, occurring most prominently at frontocentral electrodes 200-300ms after delivery of feedback. The FRN seems tobe reflective of a reward prediction error, as the magnitude of the ERP component has been related to the magnitude ofprediction error estimated through reinforcement learning (RL) models. We aim to further understanding of the FRNand its relationship to behavior by replicating the study of Reinhart & Woodman (2014), replacing tDCS with focal, tar-geted transcranial magnetic stimulation (TMS) over the frontocentral region. Preliminary data shows that our participantsreliably generate a FRN when presented with incorrect feedback, and that single-trial estimates of theta power are signifi-cantly correlated with RL-derived single-trial estimates of prediction error for correct trials. We will examine the effect ofstimulation both on participant behavior as well as on RL parameter estimates.