Anders S. Olsen

Clustering instantaneous phase-locking states with a rank-two Bures-Wasserstein distance

This paper introduces a method to cluster instantaneous phase-locking states using the Bures-Wasserstein distance, improving sensitivity to phase-lag size and spatial patterns in EEG data.

Kinetic analysis of CSF to brain tracer exchange in the pig brain under different anesthetic regimes

This study compares CSF-to-brain tracer exchange in pigs under two anesthetic regimens, finding higher tracer accumulation with ketamine/dexmedetomidine compared to propofol.

Uncovering dynamic human brain phase coherence networks

This paper introduces a mixture modeling approach to analyze brain phase coherence networks from fMRI data, identifying recurring synchronized activity states across cognitive tasks without task labels.

Psilocybin acutely reduces low-frequency BOLD power and frequency-specific connectivity

This study shows psilocybin reduces low-frequency BOLD power and alters frequency-specific connectivity in the brain.

Multiscale Quantification of Hemispheric Asymmetry in Cortical Maps Using Geometric Eigenmodes

This paper introduces a laterality index to quantify hemispheric asymmetry in cortical maps using geometric eigenmodes, validated on fMRI and tau-PET data from Alzheimer's disease patients.

On reconstruction of cortical functional maps using subject-specific geometric and connectome eigenmodes

This study evaluates the accuracy of reconstructing cortical functional maps using subject-specific geometric and connectome eigenmodes, finding that spatially smooth eigenmodes best explain functional data.