power within the EROEVK and EROTOT TFRs at the MESOI, time-frequency regions of interest (TFROIs) were defined, with the sub-bands of these TFROIs covering the δ, θ and α frequency bands and the time windows covering time epochs that overlapped with the major components in the ERP waveforms. The power within each TFROI, for both total and evoked power TFRs, was computed and these EROTOT and EROEVK power measures were utilized for further statistical analysis. Grand average EROEVK TFRs and topographical maps for each of the EROEVK power measures (δ1, δ2, θ1, θ2 and α) were computed across subjects.
