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. 2022 Apr 7;20(4):991–1012. doi: 10.1007/s12021-022-09581-8

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© The Author(s) 2022

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Fig. 4 — FOOOF cannot characterize oscillation peaks that are not clearly distinguishable. a) Left: Time series of an absence seizure measured using EEG. Turquoise: Pre-seizure, red: seizure, yellow: post-seizure activity. Right: Corresponding PSDs and aperiodic FOOOF fits. Note the increase of the 1/f exponent during the seizure. b) Left: Simulated 1/f noise and temporarily (red) added 3 Hz saw-tooth signal. Right: Aperiodic FOOOF fits. Note the increase of the 1/f exponent despite constant ground truth of $β_{truth} = 1.8$