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vibrational resonance in globally coupled bistable systems under the noise background

Chinese Physics B 2023年第7期32卷 303-307页

作者：刘江令李朝润高海玲杜鲁春 Department of Physics Yunnan UniversityKunming 650500China Graduate School Yunnan Normal UniversityKunming 650500China

Effects of system size,coupling strength,and noise on vibrational resonance(VR)of globally coupled bistable systems are *** power spectral amplifications obtained by the three methods all show that the VR exists over a wide range of parameter *** increase in system size induces and enhances the VR,while the increase in noise intensity suppresses and eventually eliminates the *** the stochastic resonance and the system size resonance can coexist with the VR in different parameter *** research has potential applications to the weak signal detection process in stochastic multi-body systems.

关键词： vibrational resonance globally coupled bistable systems power spectral amplification noise

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vibrational resonance in Winnerless Competition network

Vibrational resonance in Winnerless Competition network

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第一届全国神经动力学学术会议

作者：赵佳邓斌魏熙乐孙建兵王江 School of Electrical Engineering and Automation Tianjin University

In this paper, a winnerless competition (WLC) network which consists of nine FitzHugh-Nagumo (FHN) neurons has been introduced to investigate the effect of high-frequency driving on the response of neuron system to a subthreshold low-frequency signal. We show that optimal amplitude of high-frequency driving enhances the response of neuron system to a subthreshold low-frequency input. Further, we also find that vibrational resonance (VR) in the WLC network efficiently improve the spatiotemporal encoding of the WLC network in response to subthreshold low-frequency input.

关键词： winnerless competition network vibrational resonance spatiotemporal encoding

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vibrational resonance on modular neuronal networks

Vibrational resonance on modular neuronal networks

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第三十一届中国控制会议

作者： LIU Chen WANG Jiang YU Haitao DENG Bin WEI Xile School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China

＜正＞In this paper,the phenomenon of vibrational resonance is explored in a modular neuronal network of small-world *** effect of vibrational resonances of neuronal system depends extensively on the network structure and *** with optimal values of coupling strengths,link probability and scale of the modular neural network,the network can largely enhance the outreach of the localized subthreshold low-frequency signal.

关键词： modular small-world subnetwork vibrational resonance

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vibrational resonance on Small-world Networks with Hybrid Synapses

Vibrational Resonance on Small-world Networks with Hybrid Sy...

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第一届全国神经动力学学术会议

作者：孙建兵邓斌魏熙乐赵佳王江 School of Electrical Engineering and Automation Tianjin University

We investigate the effect of vibrational resonance in a small-world neuronal network with hybrid electrical and chemical synapses. It is shown that optimal amplitude of the high-frequency driving enhances the response of neuron populations to a subthreshold low-frequency input. Simulation results show that, irrespective of rewiring probability and network size, chemical coupling is more efficient than electrical coupling in signal detection and electrical coupling is better in signal transmission for local input. Networks with hybrid synaptic couplings combine the advantages in signal detection and propagation. By altering the ratio of the two types of synapse in hybrid coupled neuron population, we find that no matter what its ratio in a neuron population is, the chemical synapses will improve the ability of weak signal detection of neuron populations all the time. And the larger ratio of the electrical coupling in a neuron population is, the better the signal is propagated.

关键词： vibrational resonance hybrid synapses small-world network

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Enhanced vibrational resonance in a single neuron with chemical autapse for signal detection

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Chinese Physics B 2020年第12期29卷 556-563页

作者：何志威姚成贵帅建伟 Tadashi Nakano Department of Mathematics Shaoxing UniversityShaoxing 312000China College of Mathematics Physics and Information EngineeringJiaxing UniversityJiaxing 314000China Department of Physics State Key Laboratory of Cellular Stress BiologyInnovation Center for Cell Signaling NetworkXiamen UniversityXiamen 361102China Graduate School of Frontier Biosciences Osaka University5408570Japan

Many animals can detect the multi-frequency signals from their external *** understanding for underlying mechanism of signal detection can apply the theory of vibrational resonance,in which the moderate high frequency driving can maximize the nonlinear system's response to the low frequency subthreshold *** this work,we study the roles of chemical autapse on the vibrational resonance in a single neuron for signal *** reveal that the vibrational resonance is strengthened significantly by the inhibitory autapse in the neuron,while it is weakened typically by the excitatory *** is generally believed that the inhibitory synapse has a suppressive effect in neuronal ***,we find that the detection of the neuron to the low frequency subthreshold signal can be improved greatly by the inhibitory *** finding indicates that the inhibitory synapse may act constructively on the detection of weak signal in the brain and neuronal system.

关键词： neuronal dynamics autapse vibrational resonance synchronization time delay

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Effect of Hybrid Synapses on vibrational resonance in Neuron Populations with Small-world Topology

Effect of Hybrid Synapses on Vibrational Resonance in Neuron...

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第24届中国控制与决策会议

作者： Jianbing Sun, Bin Deng, Xile Wei, Jiang Wang, Jia Zhao School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China

The response of fifty coupled FitzHugh-Nagumo neurons with small-world topology, under high-frequency driving, to a subthreshold signal is investigated. We demonstrate the occurrence of vibrational resonance and it is shown that optimal amplitude of the high-frequency driving enhances the response of neuron populations to a subthreshold low-frequency input. Simulation results show that chemical coupling is more efficient than electrical coupling in signal detection and electrical coupling is better in signal transmission for local input. Networks with hybrid synaptic couplings combine the advantages in signal detection and propagation. By altering the ratio of the two types of synapse in hybrid coupled neuron population, it is shown that no matter what its ratio in a neuron population is, the chemical synapses will improve the ability of weak signal detection of neuron populations all the time. And the larger ratio of the electrical coupling in a neuron population is, the better the signal is propagated.

关键词： vibrational resonance Hybrid Synapses Small-world Network

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Dynamical Encoding of Winnerless Competition Network induced by vibrational resonance

Dynamical Encoding of Winnerless Competition Network induced...

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第24届中国控制与决策会议

作者： Jia Zhao, Bin Deng, Xile Wei, Jiang Wang, Jianbing Sun School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China

In this paper, a winnerless competition（WLC） network consists of nine FitzHugh-Nagumo（FHN） neurons have been introduced to investigate the effect of high-frequency driving on the response of neuron system to a subthreshold low-frequency signal. We show that optimal amplitude of high-frequency driving enhances the response of neuron system to a subthreshold low-frequency input. Further, we also show that vibrational resonance（VR） in the WLC network can also induce the system to produce the spatiotemporal encoding. We find that it can efficiently improve the spatiotemporal encoding of the WLC network in response to subthreshold low-frequency input.

关键词： vibrational resonance winnerless competition network

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Effects of electric field on vibrational resonances in Hindmarsh-Rose neuronal systems for signal detection

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Chinese Physics B 2023年第4期32卷 730-741页

作者：李晓霞薛小鹏刘栋杰余天意何倩倩徐桂芝 State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of TechnologyTianjin 300130China School of Health Sciences&Biomedical Engineering Hebei University of TechnologyTianjin 300130China Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of TechnologyTianjin 300130China

Changes in the concentration of charged ions in neurons can generate induced electric fields,which can further modulate cell membrane *** this paper,Fourier coefficients are used to investigate the effect of electric field on vibrational resonance for signal detection in a single neuron model and a bidirectionally coupled neuron model,*** study found that the internal electric field weakens vibrational resonance by changing two factors,membrane potential and phase-locked mode,while the periodic external electric field of an appropriate frequency significantly enhances the vibrational resonance,suggesting that the external electric field may play a constructive role in the detection of weak signals in the brain and neuronal ***,when the coupling of two neurons is considered,the effect of the electric field on the vibrational resonance is similar to that of a single *** paper also illustrates the effect of electric field coupling on vibrational *** study may provide a new theoretical basis for understanding information encoding and transmission in neurons.

关键词： electric field Fourier-coefficient neuronal dynamics vibrational resonance

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Effects of High-Frequency Stimulation Transmission of Neural Code in Feedforward Network

Effects of High-Frequency Stimulation Transmission of Neural...

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第三十届中国控制会议

作者： QIN Ying-Mei,WANG Jiang,MEN Cong,DENG Bin,WEI Xi-Le School of Electrical Engineering and Automation,Tianjin University,Tianjin 300072,P.R.China

＜正＞This paper investigated propagation of firing rate in multi-layer feedforward network（FFN） based on FitzHugh-Nagumo （FHN） neuron *** is found that the signal propagate in the multi-layer FFN almost linearity by synchronized *** and high-frequency stimuli can improve the linearity,especially for the low input *** frequency signal plays an important role in signal propagation through *** FFN,high-frequency signal can induce vibrational resonance,and displays complexity in the *** connectivity probability also has great effects on the propagation of weak signal. Therefore,both high-frequency signal and network connections can serve as control parameters in modulating neural activities. Physiologically,the research is instructive to study how the external electric field,such as deep brain stimulation（DBS）,controls the neural code propagation.

关键词： FitzHugh-Nagumo neuron Feedforward network High-frequency stimuli vibrational resonance Firing rate propagation

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