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Detection of Mechanism of Noise-Induced Synchronization between Two Identical Uncoupled Neurons
作者姓名:  徐健学  靳伍银
作者单位:[1]School of Science, Xi'an University of Technology, Xi'an 710048 [2]School of Aeronautics and Aerospace, Xi'an Jiaotong University, Xi'an 710049 [3]School of Mechanical and Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050
基金项目:Supported by the National Natural Science Foundation of China under Grant Nos 10432010, 10572056 and 10772140
摘    要:We investigate the noise-induced synchronization between two identical uncoupled Hodgkin-Huxley neurons with sinusoidal stimulations. The numerical results confirm that the value of critical noise intensity for synchronizing two systems is much less than the magnitude of mean size of the attractor in the original system, and the deterministic feature of the attractor in the original system remains unchanged. This finding is significantly different from the previous work Phys. Rev. E 67 (2003) 027201] in which the value of the critical noise intensity for synchronizing two systems was found to be roughly equal to the magnitude of mean size of the attractor in the original system, and at this intensity, the noise swamps the qualitative structure of the attractor in the original deterministic systems to synchronize to their stochastic dynamics. Further investigation shows that the critical noise intensity for synchronizing two neurons induced by noise may be related to the structure of interspike intervals of the original systems.

关 键 词:噪声  神经元  同步化  声学
收稿时间:2007-06-07

Detection of Mechanism of Noise-Induced Synchronization between Two Identical Uncoupled Neurons
WU Ying,XU Jian-Xue,JIN Wu-Yin,HONG Ling.Detection of Mechanism of Noise-Induced Synchronization between Two Identical Uncoupled Neurons[J].Chinese Physics Letters,2007,24(11):3066-3069.
Authors:WU Ying  XU Jian-Xue  JIN Wu-Yin  HONG Ling
Institution:School of Science, Xi'an University of Technology, Xi'an 710048School of Aeronautics and Aerospace, Xi'an Jiaotong University, Xi'an 710049 School of Mechanical and Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050
Abstract:We investigate the noise-induced synchronization between two identicaluncoupled Hodgkin--Huxley neurons with sinusoidal stimulations. The numerical results confirm that the value of critical noise intensity for synchronizing two systems is much less than the magnitude of mean size of the attractor in the original system, and the deterministic feature of the attractor in the original system remains unchanged. This finding is significantly different from the previous work Phys. Rev. E 67 (2003) 027201] in which the value of the critical noise intensity for synchronizing two systems was found to be roughly equal to the magnitude of mean size of the attractor in the original system, and at this intensity, the noise swamps the qualitativestructure of the attractor in the original deterministic systems to synchronize to their stochastic dynamics. Further investigation shows that the critical noise intensity for synchronizing two neurons induced by noise may be related to the structure of interspike intervals of the original systems.
Keywords:05  40  -a  05  45  -a  05  45  Xt
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