Multi-timescale hybrid components of the functional brain connectome: A bimodal EEG-fMRI decomposition.

ABSTRACT: Concurrent electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) bridge brain connectivity across timescales. During concurrent EEG-fMRI resting-state recordings, whole-brain functional connectivity (FC) strength is spatially correlated across modalities. However, cross-modal investigations have commonly remained correlational, and joint analysis of EEG-fMRI connectivity is largely unexplored. Here we investigated if there exist (spatially) independent FC networks linked between modalities. We applied the recently proposed hybrid connectivity independent component analysis (connICA) framework to two concurrent EEG-fMRI resting-state datasets (total 40 subjects). Two robust components were found across both datasets. The first component has a uniformly distributed EE

SUBMITTER: Wirsich J 

PROVIDER: S-EPMC7462430 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature