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Berger effect in iEEG

November 13, 2020

invasive recording over the human visual cortex: a beautiful alpha-rhythm. a visual stimulus is shown during the shaded intervals, the stimulus attenuates the rhythm. the rhythm returns when the stimulus is turned off. (neat to see this classic effect so clearly in ECoG ♥️) pic.twitter.com/oGQH6XV3ro

— Natalie Schaworonkow (@nschawor) November 13, 2020

Tags: beauty, desynchronization, ieeg, rhythm-alpha

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a participant with high SNR for the alpha-rhythm

July 02, 2021

participant with such high SNR for the visual alpha-rhythm in EEG, making it possible to see the harmonic spectral peaks clearly. ♥️ pic.twitter.com/bVPWJbq4LY

— Natalie Schaworonkow (@nschawor) July 2, 2021

spatial mixing of many rhythms in EEG

February 06, 2021

the EEG signal is a mixture of many different contributions. for example: midfrontal theta-, sensorimotor mu- and posterior alpha-rhythms, as well as muscle noise & eye blink artifacts. below, these components are added up successively onto electrode signals for illustration. pic.twitter.com/UcO0Trfn2D

— Natalie Schaworonkow (@nschawor) February 6, 2021

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© 2026 Natalie Schaworonkow. Adapted from Jekyll & AcademicPages, a fork of Minimal Mistakes.