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Dynamical mechanism of anticipating synchronization in excitable systems

Ciszak, Marzena; Marino, Francesco; Toral, Raúl; Balle, Salvador
Physical Review Letters 93, 114102 (1-4) (2004)

We analyze the phenomenon of anticipating synchronization of two excitable systems with unidirectional delayed coupling which are subject to the same external forcing. We demonstrate for different paradigms of excitable system that, due to the coupling, the excitability threshold for the slave system is always lower than that for the master. As a consequence the two systems respond to a common external forcing with different response times. This allows us to explain in a simple way the mechanism behind the phenomenon of anticipating synchronization in excitable systems.