Aperiodic stochastic resonance with chaotic input signals in excitable systems

Journal Article · Sun Jun 01 00:00:00 EDT 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.55.R6315· OSTI ID:530161

Eichwald, C; Walleczek, J ^[1]

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1. Bioelectromagnetics Laboratory, Department of Radiation Oncology, School of Medicine, AO38, Stanford University, Stanford, California 94305-5124 (United States)

A model of two relaxation-type nonlinear oscillators is investigated. The chaotic spike sequence generated by the first system is used as a subthreshold input signal for the second system. When also exposed to noise, the latter behaves as a detector of temporal patterns in the chaotic input signal. Calculation of dynamic correlation measures shows that the information transfer between the two systems is optimized by intermediate noise levels. This behavior represents an interesting class of aperiodic stochastic resonance (ASR) with deterministic chaotic input signals. Results show that ASR is not restricted to slowly varying input signals. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 530161
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 55, Issue 6; Other Information: PBD: Jun 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANHARMONIC OSCILLATORS
STOCHASTIC PROCESSES
RESONANCE
NOISE
NONLINEAR PROBLEMS
NERVE CELLS