ERP waveforms of mean channel ROIs, by picture type, for the (A) P1, (B) EPN, and (C) LPP components. The boxes indicate the time ROIs for each component. Inset: Topographic distributions of the F values to visualize which channels showed significant differences for each component. Channels that exceeded the 99.9th percentile permutation F threshold, indicated by the darkest shading, were included in subsequent analyses.