Signal transmission in two-way coupled neural system: system size effect |
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| Authors: | Jiancheng Shi Min Luo Chusheng Huang |
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| Affiliation: | (1) School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876, China;(2) State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing, 100871, China;(3) Inner Mongolia Finance and Economics College, Huhhot, 010051, China;(4) School of Science, Beijing University of Aeronautics and Astronautics, Beijing, 100083, China; |
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| Abstract: | We study the collective dynamical behavior of two-way coupled neural system, which is subject to external noise at the first neuron. It is shown that, for smaller system size, coherence resonance without tuning can occur under certain conditions; for larger system size, a critical value of coupling strength is found, which is a threshold for occurrence of array-enhanced coherence resonance and undamped signal transmission. In particular, when system size is increased, it is more efficient to sustain and amplify the internal signal. |
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