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Noise-induced inhibitory suppression of frequency-selective stochastic resonance

AuthorsTessone, Claudio J.; Ullner, E.; Zaikin, A. A.; Kurths, Jürgen; Toral, Raúl
KeywordsStochastic processes
Random noise
Nonlinear dynamical systems
Noise (statistical physics)
Biological/Medical Physics
Issue Date31-Oct-2006
PublisherAmerican Physical Society
CitationPhysical Review E 74, 046220 (2006)
AbstractWe study the control of oscillations in a system of inhibitory coupled noisy excitable and oscillatory units. Using dynamical properties of inhibition, we find regimes when the oscillations can be suppressed but the information signal of a certain frequency can be transmitted through the system. The mechanism of this phenomenon is a resonant interplay of noise and the transmission signal provided by certain value of inhibitory coupling. Analyzing a system of three or four oscillators representing neural clusters, we show that this suppression can be effectively controlled by coupling and noise amplitudes.
Description9 pages.-- PACS numbers: 05.45.-a, 87.19.La, 05.40.Ca, 87.10.+e.-- Final full-text version of the paper available at: http://dx.doi.org/10.1103/PhysRevE.74.046220.
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