Structural connectivity profile supports laterality of the salience network.
aging
diffusion magnetic resonance imaging
dorsal anterior cingulate cortex
frontal insula cortex
laterality
salience network
structural connectivity
Journal
Human brain mapping
ISSN: 1097-0193
Titre abrégé: Hum Brain Mapp
Pays: United States
ID NLM: 9419065
Informations de publication
Date de publication:
15 12 2019
15 12 2019
Historique:
received:
05
01
2019
revised:
29
07
2019
accepted:
10
08
2019
pubmed:
23
8
2019
medline:
25
4
2020
entrez:
23
8
2019
Statut:
ppublish
Résumé
The salience network (SN) is mainly involved in detecting and filtering multimodal salient stimuli, and mediating the switch between the default mode network and central executive network. Early studies have indicated a right-sided dominance in the functional organization of the SN; however, the anatomical basis of the functional lateralization remains unclear. Here, we hypothesized that the structural connectivity profile between the frontoinsular cortex (FIC) and dorsal anterior cingulate cortex (dACC), which are two core hubs of the SN, is also dominant in the right hemisphere. Based on diffusion and resting-state functional magnetic resonance imaging (rfMRI) of adult healthy volunteers in independent datasets, we found a stable right-sided laterality of both the FIC-dACC structural and functional connectivity in both the human connectome project cohort and a local Chinese cohort. Furthermore, a significant effect of aging on the integrity of the right FIC-dACC structural connectivity was also identified. The right-sided laterality of the structural organization of the SN may help us to better understand the functional roles of the SN in the normal human brain.
Identifiants
pubmed: 31436006
doi: 10.1002/hbm.24769
pmc: PMC6864895
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
5242-5255Subventions
Organisme : China Postdoctoral Science Foundation
ID : 2017M611175
Pays : International
Organisme : National Key Research and Development Program of China
ID : 2017YFC0909201
Pays : International
Organisme : National Key Research and Development Program of China
ID : 2018YFC1314300
Pays : International
Organisme : National Natural Science Foundation of China
ID : 81425013
Pays : International
Organisme : National Natural Science Foundation of China
ID : 81571659
Pays : International
Organisme : National Natural Science Foundation of China
ID : 81601473
Pays : International
Organisme : National Natural Science Foundation of China
ID : 81771818
Pays : International
Organisme : Natural Science Foundation of Tianjin City
ID : 17JCYBJC29200
Pays : International
Organisme : Tianjin Key Technology R&D Program
ID : 17ZXMFSY00090
Pays : International
Informations de copyright
© 2019 The Authors. Human Brain Mapping published by Wiley Periodicals, Inc.
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