Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks

Abstract Many natural systems including the brain comprise coupled elements that are stimulated non-uniformly. In this paper we show that heterogeneously driven networks of excitatory-inhibitory units exhibit a diverse range of collective phenomena, including the appearance of spontaneous oscillatio...

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Autores principales:	Varsha Sreenivasan, Shakti N. Menon, Sitabhra Sinha
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/496042a165254bc4ad162751c95c92b8
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spelling	oai:doaj.org-article:496042a165254bc4ad162751c95c92b82021-12-02T12:32:41ZEmergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks10.1038/s41598-017-01670-y2045-2322https://doaj.org/article/496042a165254bc4ad162751c95c92b82017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01670-yhttps://doaj.org/toc/2045-2322Abstract Many natural systems including the brain comprise coupled elements that are stimulated non-uniformly. In this paper we show that heterogeneously driven networks of excitatory-inhibitory units exhibit a diverse range of collective phenomena, including the appearance of spontaneous oscillations upon coupling quiescent elements. On varying the coupling strength a previously unreported transition is seen wherein the symmetries of the synchronization patterns in the stimulated and unstimulated groups undergo mutual exchange. The system also exhibits coexisting chaotic and non-chaotic attractors - a result that may be of interest in connection to earlier reports of varying degrees of chaoticity in the brain.Varsha SreenivasanShakti N. MenonSitabhra SinhaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Varsha Sreenivasan Shakti N. Menon Sitabhra Sinha Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
description	Abstract Many natural systems including the brain comprise coupled elements that are stimulated non-uniformly. In this paper we show that heterogeneously driven networks of excitatory-inhibitory units exhibit a diverse range of collective phenomena, including the appearance of spontaneous oscillations upon coupling quiescent elements. On varying the coupling strength a previously unreported transition is seen wherein the symmetries of the synchronization patterns in the stimulated and unstimulated groups undergo mutual exchange. The system also exhibits coexisting chaotic and non-chaotic attractors - a result that may be of interest in connection to earlier reports of varying degrees of chaoticity in the brain.
format	article
author	Varsha Sreenivasan Shakti N. Menon Sitabhra Sinha
author_facet	Varsha Sreenivasan Shakti N. Menon Sitabhra Sinha
author_sort	Varsha Sreenivasan
title	Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
title_short	Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
title_full	Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
title_fullStr	Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
title_full_unstemmed	Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
title_sort	emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/496042a165254bc4ad162751c95c92b8
work_keys_str_mv	AT varshasreenivasan emergenceofcouplinginducedoscillationsandbrokensymmetriesinheterogeneouslydrivennonlinearreactionnetworks AT shaktinmenon emergenceofcouplinginducedoscillationsandbrokensymmetriesinheterogeneouslydrivennonlinearreactionnetworks AT sitabhrasinha emergenceofcouplinginducedoscillationsandbrokensymmetriesinheterogeneouslydrivennonlinearreactionnetworks
_version_	1718393974988734464

Emergence of coupling-induced oscillations and broken symmetries in heterogeneously driven nonlinear reaction networks

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