Figure 4

CPP scales with the strength of subjective evidence. (a,b) Grand average ERP waveforms over electrode Pz, obtained for each visual awareness rating (a: PAS = 0 vs. 1 vs. 2; b: PAS = 1 vs. 2 vs. 3) for trials with equated stimulus intensity levels. Each waveform represents the average ERP over 500 random trial draws; shaded areas represent standard errors at each time point (note that the standard errors are very small and therefore almost invisible). Time windows of significant differences are highlighted by the dashed rectangle. (c,d) Cluster analysis results for awareness-related signals (based on ANOVAs across awareness levels). The maps on the left show the topographic distribution of F-values, while the black dots represent significant electrodes (initial draw out of 500 subsamples). The maps on the right show the topography of the p-values averaged over all 500 random draws in the time windows where the most consistent effects were found. (e,f) Pairwise post-hoc comparisons for awareness-related signals in the significant time window (dashed rectangle in a,b). Each map shows the t-value distribution with black dots indicating significant electrodes.