many rhythms in the same frequency band are active simultaneously in the cortex. they mix and a summation of them is measured. this leads to distortions with respect to waveform shape (for instance), depending on the temporal relationships between the rhythms. pic.twitter.com/yDhdd5O1Z2
— Natalie Schaworonkow (@nschawor) May 28, 2020
ok, imagine you have an oscillation that is not symmetric around 0 (small direct current shift) with some amplitude modulation, for instance with 1/f-dynamics. ➡️ then these 1/f-dynamics will show up in low frequency part of spectrum (red); in addition to around oscillation peak (yellow).
— Natalie Schaworonkow (@nschawor.bsky.social) October 16, 2025 at 3:58 PM
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3D printed brain, some LEDs inside, hand for scale.
