Cited by 388Functional Brain Connectivity StudiesAdvanced MRI Techniques and ApplicationsNeural dynamics and brain function

Spontaneous brain activity and EEG microstates. A novel EEG/fMRI analysis approach to explore resting-state networks

Musso, F., Brinkmeyer, J., Mobascher, A., Warbrick, T., Winterer, G.·2010·NeuroImage

Abstract

The brain is active even in the absence of explicit input or output as demonstrated from electrophysiological as well as imaging studies. Using a combined approach we measured spontaneous fluctuations in the blood oxygen level dependent (BOLD) signal along with electroencephalography (EEG) in eleven healthy subjects during relaxed wakefulness (eyes closed). In contrast to other studies which used the EEG frequency information to guide the functional MRI (fMRI) analysis, we opted for transient EEG events, which identify and quantify brain electric microstates as time epochs with quasi-stable field topography. We then used this microstate information as regressors for the BOLD fluctuations. Single trial EEGs were segmented with a specific module of the LORETA (low resolution electromagnetic tomography) software package in which microstates are represented as normalized vectors constituted by scalp electric potentials, i.e., the related 3-dimensional distribution of cortical current density in the brain. Using the occurrence and the duration of each microstate, we modeled the hemodynamic response function (HRF) which revealed BOLD activation in all subjects. The BOLD activation patterns resembled well known resting-state networks (RSNs) such as the default mode network. Furthermore we "cross validated" the data performing a BOLD independent component analysis (ICA) and computing the correlation between each ICs and the EEG microstates across all subjects. This study shows for the first time that the information contained within EEG microstates on a millisecond timescale is able to elicit BOLD activation patterns consistent with well known RSNs, opening new avenues for multimodal imaging data processing.

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Crossref · 10.1016/j.neuroimage.2010.01.093

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Authors
Musso, F., Brinkmeyer, J., Mobascher, A., Warbrick, T., & Winterer, G.
Affiliations
  • Heinrich Heine University Düsseldorf (DE)
  • Forschungszentrum Jülich (DE)
  • Johannes Gutenberg University Mainz (DE)
Corresponding author
  • Musso, F.
  • Brinkmeyer, J.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2010-10
Volume
52
Issue
4
Pages
1149-1161
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2044461825
Cited by
387
References
75
Citations by year
2026: 17 · 2025: 29 · 2024: 16 · 2023: 37 · 2022: 28 · 2021: 30 · 2020: 31 · 2019: 20 · 2018: 22 · 2017: 31 · 2016: 20 · 2015: 14 · 2014: 18 · 2013: 20 · 2012: 33
FWCI
13.96
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
spontaneous brain activity, EEG microstates, resting-state networks, default mode network, BOLD signal fluctuations, EEG-fMRI integration, hemodynamic response function, LORETA
MeSH terms
Action Potentials, Adult, Biological Clocks, Brain, Electroencephalography, Humans, Magnetic Resonance Imaging, Male, Nerve Net, Rest

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