Data for participants with fewer than twenty-seven artifact free trials per condition received additional preprocessing with statistical eye-blink removal (blink threshold 14 μV/ms) (Gratton, Coles, & Donchin, 1983). Participants whose data yielded 27 good trials per condition with this additional approach (n = 84) were then included in the overall statistical analysis (n = 109). This report builds on a previous report (Crowley et al. in press), which examined the feedback related negativity (FRN) in a sample of 94 participants who were a subset of the participants included in the present report. The current report focuses specifically on ERSP and ITC in the larger sample. Past work on the feedback negativity has localized the FRN to the medial frontal region along the midline at site Fz (10-10 system). We relied on the average signal across seven electrodes extending over the frontal midline and regions, specifically electrode numbers 11 (Fz), 16, 19, 12, 5, 4, and 6 (Electrical Geodesics Incorporated, Hydrocel net, see Figure 1).
