Emitting waves from defects in network with autapses

doi:10.1016/j.cnsns.2014.11.008

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	Emitting waves from defects in network with autapses
	Qin, Huixin 1; Wu, Ying 2; Wang, Chunni 1; Ma, Jun 1
刊名	COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
	2015-06
卷号	23 期号:1-3 页码:164-174
关键词	Autapse Time-delayed feedback Negative feedback Target wave Network
ISSN号	1007-5704
DOI	10.1016/j.cnsns.2014.11.008
英文摘要	Autapse is an unusual type of synapse generated by a neuron on itself. The effect of autapse connected to a neuron is often described by using a self-feedback forcing current in a close loop, and the electric activities of neuron can be regulated by the autapse greatly. Generally, positive feedback in the autapse can excite the quiescent neuron while negative feedback often calms down the excitable neuron. In this paper, the Hindmarsh-Rose neuron model is used to define the local kinetics of each node in the neuronal network, and the distribution of autapses in the network is considered to investigate the emergence of emitting wave induced by autapse (in electrical type) with negative feedback. In the case of ring network, it is found that pulse can be blocked by the neurons with negative feedback in autapse, and the pulse also can keep alive in the ring network stably under appropriate coupling intensity. Furthermore, target wave can be induced in the two-dimensional square array, and the nodes adjusted by negative electrical feedback type in autapses can emit target-like waves to regulate the collective behaviors of neurons, this is a new type of wave formation results from diffraction. It concludes that local distribution of autapse with negative feedback type can generate 'defects' in the network, the diversity in excitability accounts for the emergence of emitting wave from these defects. Finally, the functional switch between negative and positive feedback in autapse is discussed, it is claimed that positive feedback autapse plays an important role in cheering up quiescent neurons, while the negative feedback in electric autapse can contribute to slow down the excitable neurons. (C) 2014 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11265008][11372122][11365014]
WOS研究方向	Mathematics ; Mechanics ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000349760900015
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34043]
专题	理学院
通讯作者	Ma, Jun
作者单位	1.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China 2.Xi An Jiao Tong Univ, Sch Aerosp, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Qin, Huixin,Wu, Ying,Wang, Chunni,et al. Emitting waves from defects in network with autapses[J]. COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION,2015,23(1-3):164-174.
APA	Qin, Huixin,Wu, Ying,Wang, Chunni,&Ma, Jun.(2015).Emitting waves from defects in network with autapses.COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION,23(1-3),164-174.
MLA	Qin, Huixin,et al."Emitting waves from defects in network with autapses".COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION 23.1-3(2015):164-174.