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Network Mechanism for Burst Generation Mikhail V. Ivanchenko,1,2

Summary: Network Mechanism for Burst Generation
Mikhail V. Ivanchenko,1,2
Grigory V. Osipov,1,2
Vladimir D. Shalfeev,1
and Ju¨rgen Kurths2
Department of Radiophysics, Nizhny Novgorod University, 23, Gagarin Avenue, 603950 Nizhny Novgorod, Russia
Institute of Physics, University Potsdam, 10, Am Neuen Palais, D-14415, Potsdam, Germany
(Received 10 January 2006; published 5 March 2007)
We report on the mechanism of burst generation by populations of intrinsically spiking neurons, when a
certain threshold in coupling strength is exceeded. These ensembles synchronize at relatively low
coupling strength and lose synchronization at stronger coupling via spatiotemporal intermittency. The
latter transition triggers fast repetitive spiking, which results in synchronized bursting. We present
evidence that this mechanism is generic for various network topologies from regular to small-world
and scale-free ones, different types of coupling and neuronal model.
DOI: 10.1103/PhysRevLett.98.108101 PACS numbers: 87.19.La, 05.45.Xt
Bursting is a fundamental regime of neuronal behavior,
exhibiting trains of spikes of the action potential mediated
by periods of silence [1]. In some cases its functional


Source: Aickelin, Uwe - School of Computer Science, University of Nottingham


Collections: Computer Technologies and Information Sciences