Correlations for asymmetry scores between different methods of artifact mitigation at four frontal electrodes. Pearson correlations between 3 datasets are presented: visually inspected data, visually inspected + ADJUST, and visually inspected + MARA cleaned data.. Correlations between visually inspected data and visually inspected + component cleaned data were high in every case. Interestingly, the lowest correlations were between visual inspected data and MARA, and between ADJUST and MARA, at those electrodes that also tended to have the greatest high frequency power, presumably from frontalis activity (i.e., F4/F3 and F6/F5).