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Summary of grand mean amplitudes from 3 midline electrodes (Fz, Cz, Pz) of early and late cue-locked P3 and target-locked P3 activations in the 3 task conditions: Switch (comparing ‘x’ switch and ‘+’ repeat trials), NoGo and Oddball tasks (with ‘x’ and ‘+’ trials collapsed). Note the distinct scalp distribution of cue-locked P3 – but not of target-locked P3 – activity across the 3 task conditions.
