Structure-function relationships during segregated and integrated network states of human brain functional connectivity

Brain Structure & Function
Makoto FukushimaOlaf Sporns

Abstract

Structural white matter connections are thought to facilitate integration of neural information across functionally segregated systems. Recent studies have demonstrated that changes in the balance between segregation and integration in brain networks can be tracked by time-resolved functional connectivity derived from resting-state functional magnetic resonance imaging (rs-fMRI) data and that fluctuations between segregated and integrated network states are related to human behavior. However, how these network states relate to structural connectivity is largely unknown. To obtain a better understanding of structural substrates for these network states, we investigated how the relationship between structural connectivity, derived from diffusion tractography, and functional connectivity, as measured by rs-fMRI, changes with fluctuations between segregated and integrated states in the human brain. We found that the similarity of edge weights between structural and functional connectivity was greater in the integrated state, especially at edges connecting the default mode and the dorsal attention networks. We also demonstrated that the similarity of network partitions, evaluated between structural and functional connectivity, incre...Continue Reading

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Citations

Feb 23, 2019·Network Neuroscience·Enrico AmicoJoaquín Goñi
Aug 26, 2020·Human Brain Mapping·Jessica SamoginDante Mantini
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Jun 21, 2021·NeuroImage·Alessandro CrimiDiego Sona
Jan 28, 2022·Human Brain Mapping·Fabrizio EspositoAlessandro Tessitore

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Methods Mentioned

BETA
sedation

Software Mentioned

Connectome Mapper
3dDespike
Brain Connectivity Toolbox

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