Cited by 319Functional Brain Connectivity StudiesMind wandering and attentionNeural dynamics and brain function

Brain activity at rest: a multiscale hierarchical functional organization

Doucet, Gaëlle, Naveau, Mikaël, Petit, Laurent, Delcroix, Nicolas, Zago, Laure, Crivello, Fabrice, Jobard, Gaël, Tzourio-Mazoyer, Nathalie +3 more·2011·Journal of Neurophysiology

Abstract

Spontaneous brain activity was mapped with functional MRI (fMRI) in a sample of 180 subjects while in a conscious resting-state condition. With the use of independent component analysis (ICA) of each individual fMRI signal and classification of the ICA-defined components across subjects, a set of 23 resting-state networks (RNs) was identified. Functional connectivity between each pair of RNs was assessed using temporal correlation analyses in the 0.01- to 0.1-Hz frequency band, and the corresponding set of correlation coefficients was used to obtain a hierarchical clustering of the 23 RNs. At the highest hierarchical level, we found two anticorrelated systems in charge of intrinsic and extrinsic processing, respectively. At a lower level, the intrinsic system appears to be partitioned in three modules that subserve generation of spontaneous thoughts (M1a; default mode), inner maintenance and manipulation of information (M1b), and cognitive control and switching activity (M1c), respectively. The extrinsic system was found to be made of two distinct modules: one including primary somatosensory and auditory areas and the dorsal attentional network (M2a) and the other encompassing the visual areas (M2b). Functional connectivity analyses revealed that M1b played a central role in the functioning of the intrinsic system, whereas M1c seems to mediate exchange of information between the intrinsic and extrinsic systems.

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Crossref · 10.1152/jn.00895.2010

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Authors
Doucet, G., Naveau, M., Petit, L., Delcroix, N., Zago, L., Crivello, F., Jobard, G., Tzourio-Mazoyer, N., Mazoyer, B., Mellet, E., & Joliot, M.
Affiliations
  • Univ. de Bordeaux,
  • Centre National de la Recherche Scientifique (FR)
  • Cyceron (FR)
Corresponding author
Joliot, Marc
Venue
Journal of Neurophysiology
Published
2011-06
Volume
105
Issue
6
Pages
2753-2763
ISSN
  • 0022-3077 (ISSN-L)
  • 1522-1598
OpenAlex
W2128618971
Cited by
319
References
45
Citations by year
2026: 13 · 2025: 18 · 2024: 18 · 2023: 19 · 2022: 19 · 2021: 20 · 2020: 29 · 2019: 23 · 2018: 20 · 2017: 28 · 2016: 15 · 2015: 22 · 2014: 27 · 2013: 26 · 2012: 16
FWCI
12.17
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Mind wandering and attention
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
resting-state networks, spontaneous brain activity, functional connectivity, hierarchical clustering, default mode network, cognitive control, dorsal attention network, visual areas, independent component analysis
MeSH terms
Adolescent, Adult, Algorithms, Brain, Brain Mapping, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Models, Neurological, Neural Pathways, Oxygen, Rest, Statistics as Topic, Principal Component Analysis, Young Adult

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