applying PCA on traveling wave activity

September 08, 2021

what happens if you apply PCA on traveling wave type activity? this will result in two phase-shifted principal components, which can be combined to reconstruct the original wave. (example for laminar LFP recordings) pic.twitter.com/3v8cXtz1t9
— Natalie Schaworonkow (@nschawor) September 8, 2021

how can different sources give rise to traveling waves? (M/EEG)

March 25, 2022

how could one arrive at a traveling wave signal with EEG? take 1 occipital & 1 sensorimotor alpha rhythm. the resulting EEG signal will have varying peak times along the posterior-anterior direction. apparent wave direction will depend on phase shift between rhythms. pic.twitter.com/DTYMBPJI35
— Natalie Schaworonkow (@nschawor) March 25, 2022

traveling waves on a inflated brain

January 25, 2022

simulated propagating activity waves over a smooth cortical surface vs. over a brain with pronounced gyri and sulci. pic.twitter.com/Z4SJG4HzFh
— Natalie Schaworonkow (@nschawor) January 25, 2022

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how can different sources give rise to traveling waves? (M/EEG)

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