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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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Formato: | Online Artículo Texto |
Lenguaje: | English |
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John Wiley and Sons Inc.
2021
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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. |
format | Online Article Text |
id | pubmed-8442596 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT ogawaakitoshi timevaryingmeasuresofcerebralnetworkcentralitycorrelatewithvisualsaliencyduringmoviewatching |