Modular organization of brain resting state networks in chronic back pain patients

Recent work on functional magnetic resonance imaging (fMRI) large scale brain networks under resting conditions demonstrated its potential to evaluate the integrity of brain function under normal and pathological conditions. A similar approach is used in this work to study a group of chronic back...

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Main Authors: Pablo Balenzuela, Ariel Chernomoretz, Daniel Fraiman, Ignacio Cifre, Carolina Sitges, Pedro Montoya, Dante R Chialvo
Format: Article
Language:English
Published: Frontiers Media S.A. 2010-11-01
Series:Frontiers in Neuroinformatics
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fninf.2010.00116/full
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author Pablo Balenzuela
Pablo Balenzuela
Ariel Chernomoretz
Ariel Chernomoretz
Daniel Fraiman
Daniel Fraiman
Ignacio Cifre
Carolina Sitges
Pedro Montoya
Dante R Chialvo
author_facet Pablo Balenzuela
Pablo Balenzuela
Ariel Chernomoretz
Ariel Chernomoretz
Daniel Fraiman
Daniel Fraiman
Ignacio Cifre
Carolina Sitges
Pedro Montoya
Dante R Chialvo
author_sort Pablo Balenzuela
collection DOAJ
description Recent work on functional magnetic resonance imaging (fMRI) large scale brain networks under resting conditions demonstrated its potential to evaluate the integrity of brain function under normal and pathological conditions. A similar approach is used in this work to study a group of chronic back pain patients (CBP) and healthy controls (HC) to determine the impact of long enduring pain over brain dynamics. Correlation networks were constructed from the mutual partial correlations of brain activity's time series selected from ninety regions using a well validated brain parcellation atlas. The study of the resulting networks revealed an organization of up to six communities with similar modularity in both groups, but with important differences in the membership of key communities of frontal and temporal regions. The bulk of these findings were confirmed by a surprisingly naive analysis based on the pairwise correlations of the strongest and weakest correlated healthy regions. Beside confirming the brain effects of long enduring pain, these results provide a framework to study the effect of other chronic conditions over cortical function.
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spelling doaj.art-cfb62fd2498a4b959c0355f6c19e7ca42022-12-21T22:58:03ZengFrontiers Media S.A.Frontiers in Neuroinformatics1662-51962010-11-01410.3389/fninf.2010.001161538Modular organization of brain resting state networks in chronic back pain patientsPablo Balenzuela0Pablo Balenzuela1Ariel Chernomoretz2Ariel Chernomoretz3Daniel Fraiman4Daniel Fraiman5Ignacio Cifre6Carolina Sitges7Pedro Montoya8Dante R Chialvo9Universidad de Buenos AiresCONICETUniversidad de Buenos AiresCONICETCONICETUniversidad de San AndrésUniversity of Balearic IslandsUniversity of Balearic IslandsUniversity of Balearic IslandsDavid Geffen School of Medicine at UCLARecent work on functional magnetic resonance imaging (fMRI) large scale brain networks under resting conditions demonstrated its potential to evaluate the integrity of brain function under normal and pathological conditions. A similar approach is used in this work to study a group of chronic back pain patients (CBP) and healthy controls (HC) to determine the impact of long enduring pain over brain dynamics. Correlation networks were constructed from the mutual partial correlations of brain activity's time series selected from ninety regions using a well validated brain parcellation atlas. The study of the resulting networks revealed an organization of up to six communities with similar modularity in both groups, but with important differences in the membership of key communities of frontal and temporal regions. The bulk of these findings were confirmed by a surprisingly naive analysis based on the pairwise correlations of the strongest and weakest correlated healthy regions. Beside confirming the brain effects of long enduring pain, these results provide a framework to study the effect of other chronic conditions over cortical function.http://journal.frontiersin.org/Journal/10.3389/fninf.2010.00116/fullChronic PainFunctional NetworksModule Organization
spellingShingle Pablo Balenzuela
Pablo Balenzuela
Ariel Chernomoretz
Ariel Chernomoretz
Daniel Fraiman
Daniel Fraiman
Ignacio Cifre
Carolina Sitges
Pedro Montoya
Dante R Chialvo
Modular organization of brain resting state networks in chronic back pain patients
Frontiers in Neuroinformatics
Chronic Pain
Functional Networks
Module Organization
title Modular organization of brain resting state networks in chronic back pain patients
title_full Modular organization of brain resting state networks in chronic back pain patients
title_fullStr Modular organization of brain resting state networks in chronic back pain patients
title_full_unstemmed Modular organization of brain resting state networks in chronic back pain patients
title_short Modular organization of brain resting state networks in chronic back pain patients
title_sort modular organization of brain resting state networks in chronic back pain patients
topic Chronic Pain
Functional Networks
Module Organization
url http://journal.frontiersin.org/Journal/10.3389/fninf.2010.00116/full
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