waveshape and SNR

January 23, 2021

many measures depend on sufficient SNR. here, non-sinusoidal waveform shape is analyzed via the phase difference between an oscillation and its harmonic oscillation. for mu-rhythm bursts with high SNR, there is a fixed phase shift resulting in arc shape, but not for low SNR. pic.twitter.com/VA0ac2CJ1S
— Natalie Schaworonkow (@nschawor) January 23, 2021

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

validity of phase measures, second take

December 11, 2020

after some discussions, maybe a simpler way to look at this: numerical values for phase throughout the whole interval, but bursts with clear troughs and peaks only at certain times in the below signal. pic.twitter.com/4kLAiADpEH
— Natalie Schaworonkow (@nschawor) December 11, 2020

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a participant with high SNR for the alpha-rhythm

validity of phase measures, second take