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Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching

The extensive development of graph‐theoretic analysis for functional connectivity has revealed the multifaceted characteristics of brain networks. Network centralities identify the principal functional regions, individual differences, and hub structure in brain networks. Neuroimaging studies using m...

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Autor principal: Ogawa, Akitoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8442596/
https://www.ncbi.nlm.nih.gov/pubmed/34435748
http://dx.doi.org/10.1002/brb3.2334
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author Ogawa, Akitoshi
author_facet Ogawa, Akitoshi
author_sort Ogawa, Akitoshi
collection PubMed
description The extensive development of graph‐theoretic analysis for functional connectivity has revealed the multifaceted characteristics of brain networks. Network centralities identify the principal functional regions, individual differences, and hub structure in brain networks. Neuroimaging studies using movie‐watching have investigated brain function under naturalistic stimuli. Visual saliency is one of the promising measures for revealing cognition and emotions driven by naturalistic stimuli. This study investigated whether the visual saliency in movies was associated with network centrality. The study examined eigenvector centrality (EC), which is a measure of a region's influence in the brain network, and the participation coefficient (PC), which reflects the hub structure in the brain, was used for comparison. Static and time‐varying EC and PC were analyzed by a parcel‐based technique. While EC was correlated with brain activity in parcels in the visual and auditory areas during movie‐watching, it was only correlated with parcels in the visual areas in the retinotopy task. In addition, high PC was consistently observed in parcels in the putative hub both during the tasks and the resting‐state condition. Time‐varying EC in the parietal parcels and time‐varying PC in the primary sensory parcels significantly correlated with visual saliency in the movies. These results suggest that time‐varying centralities in brain networks are distinctively associated with perceptual processing and subsequent higher processing of visual saliency.
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spelling pubmed-84425962021-09-15 Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching Ogawa, Akitoshi Brain Behav Original Research The extensive development of graph‐theoretic analysis for functional connectivity has revealed the multifaceted characteristics of brain networks. Network centralities identify the principal functional regions, individual differences, and hub structure in brain networks. Neuroimaging studies using movie‐watching have investigated brain function under naturalistic stimuli. Visual saliency is one of the promising measures for revealing cognition and emotions driven by naturalistic stimuli. This study investigated whether the visual saliency in movies was associated with network centrality. The study examined eigenvector centrality (EC), which is a measure of a region's influence in the brain network, and the participation coefficient (PC), which reflects the hub structure in the brain, was used for comparison. Static and time‐varying EC and PC were analyzed by a parcel‐based technique. While EC was correlated with brain activity in parcels in the visual and auditory areas during movie‐watching, it was only correlated with parcels in the visual areas in the retinotopy task. In addition, high PC was consistently observed in parcels in the putative hub both during the tasks and the resting‐state condition. Time‐varying EC in the parietal parcels and time‐varying PC in the primary sensory parcels significantly correlated with visual saliency in the movies. These results suggest that time‐varying centralities in brain networks are distinctively associated with perceptual processing and subsequent higher processing of visual saliency. John Wiley and Sons Inc. 2021-08-26 /pmc/articles/PMC8442596/ /pubmed/34435748 http://dx.doi.org/10.1002/brb3.2334 Text en © 2021 The Authors. Brain and Behavior published by Wiley Periodicals LLC https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Ogawa, Akitoshi
Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
title Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
title_full Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
title_fullStr Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
title_full_unstemmed Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
title_short Time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
title_sort time‐varying measures of cerebral network centrality correlate with visual saliency during movie watching
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8442596/
https://www.ncbi.nlm.nih.gov/pubmed/34435748
http://dx.doi.org/10.1002/brb3.2334
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