title: Vibrational resonance induced by transition of phase-locking modes in excitable systems.
abstract: We study the occurrence of vibrational resonance as well as the underlying mechanism in excitable systems. The single vibration resonance and vibration bi-resonance are observed when tuning the amplitude and frequency of high-frequency force simultaneously. Furthermore, by virtue of the phase diagram of low-frequency-signal-free FitzHugh-Nagumo model, it is found that each maxima of response measure is located exactly at the transition boundary of phase patterns. Therefore, it is the transition between different phase-locking modes that induces vibrational resonance in the excitable systems. Finally, this mechanism is verified in the Hodgkin-Huxley neural model. Our results provide insights into the transmission of weak signals in nonlinear systems, which are valuable in engineering for potential applications.
authors.affiliation: Department of Physics and Institute of Biophysics, Central China Normal University, Wuhan, China.
authors.forename: Lijian
authors.initials: L
authors.lastname: Yang
authors.forename: Wangheng
authors.initials: W
authors.lastname: Liu
authors.forename: Ming
authors.initials: M
authors.lastname: Yi
authors.forename: Canjun
authors.initials: C
authors.lastname: Wang
authors.forename: Qiaomu
authors.initials: Q
authors.lastname: Zhu
authors.forename: Xuan
authors.initials: X
authors.lastname: Zhan
authors.forename: Ya
authors.initials: Y
authors.lastname: Jia
mesh_terms: D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D003198:Computer Simulation; D006801:Humans; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D009435:Synaptic Transmission / Q000502:physiology*; D014732:Vibration