| 色噪声作用下耦合神经元网络的相干共振 |
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| 引用本文： | 刘志宏,周玉荣,张安英,庞小峰. 色噪声作用下耦合神经元网络的相干共振[J]. 电子科技大学学报(社会科学版), 2010, 0(5) |
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| 作者姓名： | 刘志宏 周玉荣 张安英 庞小峰 |
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| 作者单位： | 成都信息工程学院电子工程学院;电子科技大学生命科学与技术学院;攀枝花学院电气信息工程学院; |
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| 基金项目： | 国家自然科学基金(30600127) |
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| 摘 要： | 研究了色噪声作用下耦合(FHN)神经元模型的相干共振现象。运用改进的四阶随机龙格-库塔法,计算了神经元膜电压分布和神经元点火峰峰间隔的变差系数。结果表明,神经元点火峰峰间隔的变差系数是色噪声强度、色噪声相关率和耦合神经元个数的非单调函数;存在最优的色噪声强度、色噪声相关率和耦合神经元个数,使得神经元点火峰峰间隔的变差系数出现极小值(即为相干共振)。讨论了色噪声强度、色噪声相关率和耦合神经元个数对系统相干性的影响。
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| 关 键 词： | 变差系数 相干共振 色噪声 耦合 神经元 |
Coherence Resonance in A Coupled Neurons Models Driven by Colored Noise |
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| LIU Zhi-hong,,ZHOU Yu-rong,ZHANG An-ying,, PANG Xiao-feng. Coherence Resonance in A Coupled Neurons Models Driven by Colored Noise[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2010, 0(5) |
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| Authors: | LIU Zhi-hong ZHOU Yu-rong ZHANG An-ying PANG Xiao-feng |
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| Affiliation: | LIU Zhi-hong1,2,ZHOU Yu-rong3,ZHANG An-ying2,, PANG Xiao-feng2 (1.School of Electronic Engineering,Chengdu University of Information , Technology Chengdu 610225,2.School of Life Science , Technology,University of Electronic Science , Technology of China Chengdu 610054,3.School of Information , Engineering,Panzhihua University Panzhihua Sichuan 617000) |
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| Abstract: | The phenomenon of coherence resonance(CR) in the coupled FitzHugh-Nagumo(FHN) neuron models driven by the colored noise is investigated.Based on the method of forth steps stochastic Runge-Kutta methods,the interval-spike-interval(ISI) of the neuron firing and the coefficient of variation(CV) have been obtained.It is shown that the CV is a non-monotonic function of the correlation of colored noise,the intensity of colored noise,and the coupling numbers.Furthermore,by choosing the appropriate the correlation ... |
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| Keywords: | coefficient of variation coherence resonance colored noise coupled neuron |
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