influence of SNR on waveform estimates

Published: October 04, 2019

Measured waveform shape in neuronal oscillations depends on signal-to-noise ratio. Only for high amplitude, peak-trough asymmetry can be reliably detected. Harmonic frequencies cancel fast... 3 subjects, EEG resting state data, channel: O1, each dot = 1 alpha-oscillation cycle. pic.twitter.com/y5dY67lVFs
— Natalie Schaworonkow (@nschawor) October 4, 2019

topographical distribution of auditory sources in MEG vs. EEG

Published: March 14, 2024

in auditory paradigms using MEG, peak activation is over temporal sensors. with EEG, curiously often peak activation is on vertex channels. 🤔

it feels counterintuitive, given the distance from source, right? but it is expected, as this simulation with 2 active dipoles shows. pic.twitter.com/P91W2bEmg8
— Natalie Schaworonkow (@nschawor) March 18, 2024

paper: waveform shape in bats

Published: March 07, 2024

waveform shape of oscillations can reflect properties of underlying spiking dynamics. if neuronal units fire in synchrony, the local field potential can be more asymmetric (here: sharp troughs).
read about this & cool bat rhythms 🦇 in our new paper: https://t.co/rf5et9Wy9q pic.twitter.com/pTJM8kDDNW
— Natalie Schaworonkow (@nschawor) March 7, 2024

Natalie Schaworonkow

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topographical distribution of auditory sources in MEG vs. EEG

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