Figure 2.

The N2 (Figure part A) and P3 ERP-component (Figure part B) are shown at electrodes FCz and pooled across CPz and Pz, respectively. Time point zero denotes the time point of target stimulus presentation. Negativity is plotted downwards. The different colours of the ERP traces denote the compatible (lighter tone) and incompatible (darker tone) trials in patients with ADHD (green) and controls (blue). The scalp topography plots are shown for the peak of each ERP component in the compatibility conditions and groups. In the maps, blue colours denote negativity and red colours denote positivity.