Synchronization in functional networks of the human brain

dc.check.date2019-10-25
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisheren
dc.contributor.authorHövel, Philipp
dc.contributor.authorViol, Aline
dc.contributor.authorLoske, Philipp
dc.contributor.authorMerfort, Leon
dc.contributor.authorVuksanović, Vesna
dc.contributor.funderDeutsche Forschungsgemeinschaften
dc.date.accessioned2018-11-23T11:48:49Z
dc.date.available2018-11-23T11:48:49Z
dc.date.issued2018-10-25
dc.date.updated2018-11-23T11:40:40Z
dc.description.abstractUnderstanding the relationship between structural and functional organization represents one of the most important challenges in neuroscience. An increasing amount of studies show that this organization can be better understood by considering the brain as an interactive complex network. This approach has inspired a large number of computational models that combine experimental data with numerical simulations of brain interactions. In this paper, we present a summary of a data-driven computational model of synchronization between distant cortical areas that share a large number of overlapping neighboring (anatomical) connections. Such connections are derived from in vivo measures of brain connectivity using diffusion-weighted magnetic resonance imaging and are additionally informed by the presence of significant resting-state functionally correlated links between the areas involved. The dynamical processes of brain regions are simulated by a combination of coupled oscillator systems and a hemodynamic response model. The coupled oscillatory systems are represented by the Kuramoto phase oscillators, thus modeling phase synchrony between regional activities. The focus of this modeling approach is to characterize topological properties of functional brain correlation related to synchronization of the regional neural activity. The proposed model is able to reproduce remote synchronization between brain regions reaching reasonable agreement with the experimental functional connectivities. We show that the best agreement between model and experimental data is reached for dynamical states that exhibit a balance of synchrony and variations in synchrony providing the integration of activity between distant brain regions.en
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (under Grant No. HO4695/3-1 and within the framework of Collaborative Research Center 910)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHövel, P., Viol, A., Loske, P., Merfort, L. and Vuksanović, V. (2018) 'Synchronization in Functional Networks of the Human Brain', Journal of Nonlinear Science, doi: 10.1007/s00332-018-9505-7en
dc.identifier.doi10.1007/s00332-018-9505-7
dc.identifier.endpage24en
dc.identifier.issn1432-1467
dc.identifier.journaltitleJournal of Nonlinear Scienceen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/7138
dc.language.isoenen
dc.publisherSpringeren
dc.relation.urihttps://link.springer.com/article/10.1007%2Fs00332-018-9505-7
dc.rights© Springer Science+Business Media, LLC, part of Springer Nature 2018. This is a post-peer-review, pre-copyedit version of an article published in Journal of Nonlinear Science. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00332-018-9505-7en
dc.subjectNonlinear dynamicsen
dc.subjectSynchronizationen
dc.subjectBrain connectivityen
dc.subjectKuramoto phase oscillatoren
dc.subjectNeural activityen
dc.titleSynchronization in functional networks of the human brainen
dc.typeArticle (peer-reviewed)en
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