It is shown that an arbitrarily weak (frozen) heterogeneity can induce global synchronized oscillations in excitable media close to threshold. The work is carried out on networks of coupled van der Pol-FitzHugh- Nagumo oscillators. The result is shown to be robust against the presence of internal dynamical noise. ©2001 The American Physical Society.

Triggering synchronized oscillations through arbitrarily weak diversity in close-to-threshold excitable media

Degli Esposti Boschi;
2002

Abstract

It is shown that an arbitrarily weak (frozen) heterogeneity can induce global synchronized oscillations in excitable media close to threshold. The work is carried out on networks of coupled van der Pol-FitzHugh- Nagumo oscillators. The result is shown to be robust against the presence of internal dynamical noise. ©2001 The American Physical Society.
2002
Cardiology
Cells
Computational methods
Mathematical models
Potential energy
Random processes
Signal processing
Stochastic control systems
Bistable activator-inhibitor media
Excitability
Spatial coupling
Visual cortex
Spurious signal noise
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/455080
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