Hub-driven remote synchronization in brain networks
Abstract The phenomenon of “remote synchronization” (RS), first observed in a star network of oscillators, involves synchronization of unconnected peripheral nodes through a hub that maintains independent dynamics. In the RS regime the central hub was thought to serve as a passive gate for informati...
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Nature Portfolio
2017
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oai:doaj.org-article:29b62dd9038547feabaceee3c3a311a92021-12-02T15:05:14ZHub-driven remote synchronization in brain networks10.1038/s41598-017-09887-72045-2322https://doaj.org/article/29b62dd9038547feabaceee3c3a311a92017-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09887-7https://doaj.org/toc/2045-2322Abstract The phenomenon of “remote synchronization” (RS), first observed in a star network of oscillators, involves synchronization of unconnected peripheral nodes through a hub that maintains independent dynamics. In the RS regime the central hub was thought to serve as a passive gate for information transfer between nodes. Here, we investigate the physical origin of this phenomenon. Surprisingly, we find that a hub node can drive remote synchronization of peripheral oscillators even in the presence of a repulsive mean field, thus actively governing network dynamics while remaining asynchronous. We study this novel phenomenon in complex networks endowed with multiple hub-nodes, a ubiquitous feature of many real-world systems, including brain connectivity networks. We show that a change in the natural frequency of a single hub can alone reshape synchronization patterns across the entire network, and switch from direct to remote synchronization, or to hub-driven desynchronization. Hub-driven RS may provide a mechanism to account for the role of structural hubs in the organization of brain functional connectivity networks.Vladimir VlasovAngelo BifoneNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017) |
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DOAJ |
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DOAJ |
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EN |
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Medicine R Science Q |
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Medicine R Science Q Vladimir Vlasov Angelo Bifone Hub-driven remote synchronization in brain networks |
| description |
Abstract The phenomenon of “remote synchronization” (RS), first observed in a star network of oscillators, involves synchronization of unconnected peripheral nodes through a hub that maintains independent dynamics. In the RS regime the central hub was thought to serve as a passive gate for information transfer between nodes. Here, we investigate the physical origin of this phenomenon. Surprisingly, we find that a hub node can drive remote synchronization of peripheral oscillators even in the presence of a repulsive mean field, thus actively governing network dynamics while remaining asynchronous. We study this novel phenomenon in complex networks endowed with multiple hub-nodes, a ubiquitous feature of many real-world systems, including brain connectivity networks. We show that a change in the natural frequency of a single hub can alone reshape synchronization patterns across the entire network, and switch from direct to remote synchronization, or to hub-driven desynchronization. Hub-driven RS may provide a mechanism to account for the role of structural hubs in the organization of brain functional connectivity networks. |
| format |
article |
| author |
Vladimir Vlasov Angelo Bifone |
| author_facet |
Vladimir Vlasov Angelo Bifone |
| author_sort |
Vladimir Vlasov |
| title |
Hub-driven remote synchronization in brain networks |
| title_short |
Hub-driven remote synchronization in brain networks |
| title_full |
Hub-driven remote synchronization in brain networks |
| title_fullStr |
Hub-driven remote synchronization in brain networks |
| title_full_unstemmed |
Hub-driven remote synchronization in brain networks |
| title_sort |
hub-driven remote synchronization in brain networks |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/29b62dd9038547feabaceee3c3a311a9 |
| work_keys_str_mv |
AT vladimirvlasov hubdrivenremotesynchronizationinbrainnetworks AT angelobifone hubdrivenremotesynchronizationinbrainnetworks |
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1718388880526278656 |