Frederic von Wegner

The effects of temporal smoothing and interpolation on EEG microstate parameters, syntax, and our view of resting-state brain dynamics

This paper examines how temporal smoothing and interpolation affect EEG microstate parameters, showing that strong smoothing alters brain dynamics and recommends avoiding intense smoothing to preserve accurate representations.

Clustering without clusters: the meta-criterion and centroid reliability mistake continuous dynamics for discrete states

This paper challenges the use of the meta-criterion for determining cluster numbers in microstate analysis, showing it can suggest spurious optimal cluster numbers and that EEG topographies form a single connected structure rather than clusters.

Spectral power, but not phase connectivity, decodes the subanaesthetic ketamine state from surface EEG: the role of between-subject transferability

This study decodes the subanaesthetic ketamine state from EEG using spectral power, showing it is more transferable across subjects than phase connectivity.

A quantitative comparison of two methods for higher-order EEG microstate syntax analysis

The paper compares entropy rate and sample entropy metrics for analyzing higher-order EEG microstate syntax in Alzheimer's disease and control groups, finding differences that disappear when normalized to first-order syntax.

Higher-order EEG microstate syntax and surrogate testing

The paper evaluates surrogate data generation methods for EEG microstate syntax analysis, finding that Markov chain surrogates are valid while shuffling is not.