For targets, the P1 was quantified over lateral posterior sites (PO7, PO8, PO3, PO4, O1 and O2) between 70 and 130 ms, followed by a negative N1 in a time window of 150–200 ms over those same sites. From 180 to 230 ms post-target onset a P2 component was present and maximal at central electrode sites C1, C2, Cz and CPz. The N2 amplitude was analyzed on frontal electrode sites (F1, F2, FC1, FC2, FCz and Fz) between 250 and 300 ms. A late target P3 was visible from 300 ms to 600 ms in parietal regions (P1, P2, Pz and POz). A feedback-related component was observed over central parietal electrodes (CP1, CP2, CPz) starting around 200 ms after feedback presentation, which was quantified between 200 and 400 ms.
