Biophysical mechanism of signal encoding in an auditory neuron

doi:10.1007/s11071-021-06770-z

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	Biophysical mechanism of signal encoding in an auditory neuron
	Guo, Yitong 1; Zhou, Ping 1,2; Yao, Zhao ; Ma, Jun 1,2
刊名	NONLINEAR DYNAMICS
	2021-09
卷号	105 期号:4 页码:3603-3614
关键词	Piezoelectric neuron Wave filter Frequency selection Mode selection
ISSN号	0924-090X
DOI	10.1007/s11071-021-06770-z
英文摘要	Auditory system in animals can capture external sound signals, which can be converted into biophysical electric signals, and then the auditory neurons are activated to generate kinds of firing patterns. Bats can detect signals with ultrahigh frequency while human auditory system is sensitive to sound and voice within the frequency range 20 to 20,000 Hertz. In this paper, a piezoelectric neuron is proposed to investigate the physical mechanism for selection of frequency and filtering in auditory wave, and filtering wave function is designed to simulate the mode selection in the electrical activities of auditory neuron. Sound signals with multiple frequencies are imposed to drive the auditory neuron and mode selection is analyzed in detail. A decay factor is introduced to control the wave filter and frequency selection, and the amplitude is decreased sharply within transient period when the frequency is beyond or below the threshold. Furthermore, additive noise is accompanied by the sound signals and the mode selection is investigated by taming the noise intensity carefully. It is found that intermediate noise intensity can enhance nonlinear resonance and the auditory wave is encoded to induce regularity in the neural activities. The results can be helpful for further designing smart sensor and wave filter in signal processing, and the biophysical mechanism for signal processing in auditory system is clarified.
WOS研究方向	Engineering ; Mechanics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000681549700006
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148802]
专题	理学院
作者单位	1.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China; 2.Chongqing Univ Posts & Telecommunicat, Sch Sci, Chongqing 430065, Peoples R China
推荐引用方式 GB/T 7714	Guo, Yitong,Zhou, Ping,Yao, Zhao,et al. Biophysical mechanism of signal encoding in an auditory neuron[J]. NONLINEAR DYNAMICS,2021,105(4):3603-3614.
APA	Guo, Yitong,Zhou, Ping,Yao, Zhao,&Ma, Jun.(2021).Biophysical mechanism of signal encoding in an auditory neuron.NONLINEAR DYNAMICS,105(4),3603-3614.
MLA	Guo, Yitong,et al."Biophysical mechanism of signal encoding in an auditory neuron".NONLINEAR DYNAMICS 105.4(2021):3603-3614.