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Power across all scalp sites (top panel), frontal channels only (F1, F2, F3, F4, F5, F6, F7, F8, and Fz, middle panel), occipital channels only (POz, Oz, O1, and O2, bottom panel) at each spectral point for data that was visually inspected data, visually inspected + ADJUST, and visually inspected + MARA.. All 3 conditions show a robust alpha peak, MARA and ADJUST similarly attenuate delta and theta power, and MARA attenuates high frequency power at frontal channels.
