Signal transmission in two-way coupled neural system: system size effect

被引：4
|
作者：
Shi, Jiancheng [1 ]
Luo, Min [1 ]
Huang, Chusheng [1 ]
机构：
[1] Guangxi Teachers Educ Univ, Coll Chem & Life Sci, Nanning 0530001, Peoples R China
来源：
INDIAN JOURNAL OF PHYSICS | 2010年 / 84卷 / 09期
关键词：
Coherence resonance without tuning; array-enhanced coherence resonance; undamped signal transmission; neural system; SPATIOTEMPORAL STOCHASTIC RESONANCE; COHERENCE RESONANCE; EXCITABLE SYSTEMS; NOISE; OSCILLATIONS; NEURONS; MODELS; SYNCHRONIZATION; NETWORKS;
D O I：
10.1007/s12648-010-0110-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
引用
收藏
页码：1229 / 1239
页数：11
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