Figure 2

P3b and P2a at midline electrodes. The grand-average P3b (left panel) and grand-average P2a (right panel) evoked by targets and non-targets at midline electrodes.
P3b and P2a at midline electrodes. The grand-average P3b (left panel) and grand-average P2a (right panel) evoked by targets and non-targets at midline electrodes.