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Task-induced changes in brain entropy
Entropy indicates irregularity of a dynamic system with higher entropy indicating higher irregularity and more transit states. In the human brain, regional entropy has been increasingly assessed using resting state fMRI. Response of regional entropy to task has been scarcely studied. The purpose of...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cold Spring Harbor Laboratory
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10187354/ https://www.ncbi.nlm.nih.gov/pubmed/37205436 http://dx.doi.org/10.1101/2023.04.28.23289255 |
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author | Camargo, Aldo Mauro, Gianpaolo Del Wang, Ze |
author_facet | Camargo, Aldo Mauro, Gianpaolo Del Wang, Ze |
author_sort | Camargo, Aldo |
collection | PubMed |
description | Entropy indicates irregularity of a dynamic system with higher entropy indicating higher irregularity and more transit states. In the human brain, regional entropy has been increasingly assessed using resting state fMRI. Response of regional entropy to task has been scarcely studied. The purpose of this study is to characterize task-induced regional brain entropy (BEN) alterations using the large Human Connectome Project (HCP) data. To control the potential modulation by the block-design, BEN of task-fMRI was calculated from the fMRI images acquired during the task conditions only and then compared to BEN of rsfMRI. Compared to resting state, task-performance unanimously induced BEN reduction in the peripheral cortical area including both the task activated regions and task non-specific regions such as the task negative area and BEN increase in the centric part of the sensorimotor and perception networks. Task control condition showed large residual task effects. After controlling the task non-specific effects using the control BEN vs task BEN comparison, regional BEN showed task specific effects in target regions. |
format | Online Article Text |
id | pubmed-10187354 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Cold Spring Harbor Laboratory |
record_format | MEDLINE/PubMed |
spelling | pubmed-101873542023-05-17 Task-induced changes in brain entropy Camargo, Aldo Mauro, Gianpaolo Del Wang, Ze medRxiv Article Entropy indicates irregularity of a dynamic system with higher entropy indicating higher irregularity and more transit states. In the human brain, regional entropy has been increasingly assessed using resting state fMRI. Response of regional entropy to task has been scarcely studied. The purpose of this study is to characterize task-induced regional brain entropy (BEN) alterations using the large Human Connectome Project (HCP) data. To control the potential modulation by the block-design, BEN of task-fMRI was calculated from the fMRI images acquired during the task conditions only and then compared to BEN of rsfMRI. Compared to resting state, task-performance unanimously induced BEN reduction in the peripheral cortical area including both the task activated regions and task non-specific regions such as the task negative area and BEN increase in the centric part of the sensorimotor and perception networks. Task control condition showed large residual task effects. After controlling the task non-specific effects using the control BEN vs task BEN comparison, regional BEN showed task specific effects in target regions. Cold Spring Harbor Laboratory 2023-05-02 /pmc/articles/PMC10187354/ /pubmed/37205436 http://dx.doi.org/10.1101/2023.04.28.23289255 Text en https://creativecommons.org/licenses/by-nc/4.0/This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/) , which allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator. |
spellingShingle | Article Camargo, Aldo Mauro, Gianpaolo Del Wang, Ze Task-induced changes in brain entropy |
title | Task-induced changes in brain entropy |
title_full | Task-induced changes in brain entropy |
title_fullStr | Task-induced changes in brain entropy |
title_full_unstemmed | Task-induced changes in brain entropy |
title_short | Task-induced changes in brain entropy |
title_sort | task-induced changes in brain entropy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10187354/ https://www.ncbi.nlm.nih.gov/pubmed/37205436 http://dx.doi.org/10.1101/2023.04.28.23289255 |
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