Fig. 6.

Error response-locked ERPs. a Grand average CSD maps for Ne/ERN and Pe intervals. b ERPs at FCz, per group, for pretest (solid lines) and posttest (dashes lines), vertical lines indicate response onset. c Average Ne/ERN and Pe peak amplitudes, per group and session. d Pe peak amplitude change (posttest–pretest) per group for crosstalk only. Error bars denote SE. * p ≤ 0.05