Source ERP’s to correct and error responses. The ERP’s are plotted separately for each source following correct (in black) and incorrect (in red) behavioral responses. The source number is indicated above each plot. The topographic plots indicate the average spatial loadings (N = 51 subjects) for each group temporal source. The large black circles within each topographic plot denote electrodes Fp1, Fp2, F3, F4, C3, C4, P3, P4, O1, and O2 (from top left to bottom right).