Figure 7. ‘PN’ wave in trials with short MOT.
The occurrence of PN observed in the LME results (left, reproduced from Fig. 5) was confirmed by the subtraction of the average waveforms of the ‘short MOT’ and ‘long MOT’ trials (right). These waveforms were generated by combining the normalized EEG signal from all Experiments (1–5), after removing any within‐subjects (all experiments), between‐conditions (Experiments 1 and 2) and between‐experiments effects variability. The average waveform of the trials with shorter MOTs was less positive than the average waveform of the trials with longer MOTs at a time window around 120–400 ms, resulting in the observed negativity. [Color figure can be viewed at http://wileyonlinelibrary.com]