Partial synchronization in empirical brain networks as a model for unihemispheric sleep

Abstract

We analyze partial synchronization patterns in a network of FitzHugh-Nagumo oscillators with empirical structural connectivity measured in healthy human subjects. We report a dynamical asymmetry between the hemispheres, induced by the natural structural asymmetry. We show that the dynamical asymmetry can be enhanced by introducing the inter-hemispheric coupling strength as a control parameter for partial synchronization patterns. We discuss a minimum model elucidating the modalities of unihemispheric sleep in human brain, where one hemisphere sleeps while the other remains awake. In fact, this state is common among migratory birds and mammals like aquatic species.

Publication DOI: https://doi.org/10.1209/0295-5075/126/50007
Divisions: College of Engineering & Physical Sciences > School of Informatics and Digital Engineering > Mathematics
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
College of Engineering & Physical Sciences
Additional Information: Copyright © EPLA, 2019
Uncontrolled Keywords: Physics and Astronomy(all)
Publication ISSN: 1286-4854
Full Text Link: https://arxiv.o ... /abs/1904.05949
Related URLs: https://iopscie ... -5075/126/50007 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2019-07-15
Accepted Date: 2019-06-12
Authors: Ramlow, Lukas
Sawicki, Jakub
Zakharova, Anna
Hlinka, Jaroslav
Claussen, Jens Christian (ORCID Profile 0000-0002-9870-4924)
Schöll, Eckehard

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