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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...

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Detalles Bibliográficos
Autores principales: Camargo, Aldo, Mauro, Gianpaolo Del, Wang, Ze
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cold Spring Harbor Laboratory 2023
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.
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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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