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. Author manuscript; available in PMC: 2019 Apr 5.
Published in final edited form as: Int J Psychophysiol. 2016 Nov 17;111:98–114. doi: 10.1016/j.ijpsycho.2016.11.005

Figure 4.

Figure 4.

Spectral power across the scalp for five frequency bands of interest before and after automatic IC-based correction using the MARA algorithm. The depicted scale (in μV2) varies across frequency bins, and is the same for the first two columns (Visual inspection only, Visual inspection only + MARA; the difference score has its own scale)). Overlapping-epochs were hamming-windowed prior to FFT to mitigate edge-artifacts. The FFT results for each epoch were averaged for each subject, then across all subjects (i.e., a grand-average). Spectral points were averaged within canonical frequency bands.