Amplified Signal Response by Neuronal Diversity on Complex Networks
Amplified Signal Response by Neuronal Diversity on Complex Networks作者机构：1Department of Educational Technology Anqing Teachers College Anqing 246011 College of Physics and Electronic Information Anhui Normal University Wuhu 241000
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2008年第25卷第5期
页 面：1591-1594页
核心收录：
学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学]
基 金：the Key Research Foundation of Higher Education of Anhui Province of China under Grant No KJ2007A079 the Research A ward Fund for Young Teachers in Higher Education Institutions Anhui Province of China under Grnat No 2007jq1118 the Research Fund of Anhui Noraml University under Grant No 2006xzx09
主 题：SMALL-WORLD NETWORKS STOCHASTIC RESONANCE COHERENCE RESONANCE NEURAL-NETWORKS SYNCHRONIZATION SYSTEMS INFORMATION MECHANISM DISORDER NOISE
摘 要：The effect of diversity on dynamics of coupled FitzHugh-Nagumo neurons on complex networks is numerically investigated, where each neuron is subjected to an external subthreshold signal. With the diversity the network is a mixture of excitable and oscillatory neurons, and the diversity is determined by the variance of the system＇s parameter. The complex network is constructed by randomly adding long-range connections （shortcuts） on a nearest-neighbouring coupled one-dimensional chain. Numerical results show that external signals are maximally magnified at an intermediate value of the diversity, as in the case of well-known stochastic resonance, burthermore, the effects of the number of shortcuts and coupled strength on the diversity-induced phenomena are also discussed. These findings exhibit that the diversity may play a constructive role in response to external signal, and highlight the importance of the diversity on such complex networks.
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