P300 waveforms for the dry-EEG approach. This figure depicts the N1, P3a (top) and the P3b (bottom) components for the Cz channel across the two conditions we examine in the auditory oddball task. Mean amplitudes of the deviant (oddball) condition are in red. The latency, displayed in black, is 176.7ms for the P3a and 263ms for the P3b components.