TY  - JOUR
A1  - Volkov, E. I.
A1  - Ullner, Ekkehard
A1  - Zaikin, Alexei A.
A1  - Kurths, Jürgen
T1  - Frequency-dependent stochastic resonance in inhibitory coupled excitable systems
N2  - We study frequency selectivity in noise-induced subthreshold signal processing in a system with many noise- supported stochastic attractors which are created due to slow variable diffusion between identical excitable elements. Such a coupling provides coexisting of several average periods distinct from that of an isolated oscillator and several phase relations between elements. We show that the response of the coupled elements under different noise levels can be significantly enhanced or reduced by forcing some elements in resonance with these new frequencies which correspond to appropriate phase relations
Y1  - 2003
SN  - 1063-651X
ER  - 
TY  - JOUR
A1  - Volkov, E. I.
A1  - Ullner, Ekkehard
A1  - Kurths, Jürgen
T1  - Stochastic multiresonance in the coupled relaxation oscillators
N2  - We study the noise-dependent dynamics in a chain of four very stiff excitable oscillators of the FitzHugh- Nagumo type locally coupled by inhibitor diffusion. We could demonstrate frequency- and noise-selective signal acceptance which is based on several noise-supported stochastic attractors that arise owing to slow variable diffusion between identical excitable elements. The attractors have different average periods distinct from that of an isolated oscillator and various phase relations between the elements. We explain the correspondence between the noise-supported stochastic attractors and the observed resonance peaks in the curves for the linear response versus signal frequency. (C) 2005 American Institute of Physics
Y1  - 2005
SN  - 1054-1500
ER  -