Dynamics and coherence resonance in a thermosensitive neuron driven by photocurrent

作     者：徐莹 刘明华 朱志刚 马军 Ying Xu;Minghua Liu;Zhigang Zhu;Jun Ma

作者机构：Department of PhysicsLanzhou University of TechnologyLanzhou 730050China Department of PhysicsCentral China Normal UniversityWuhan 430079China Electrical Engineering CollegeNorthwest Minzu UniversityLanzhou 730124China School of ScienceChongqing University of Posts and TelecommunicationsChongqing 430065China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2020年第29卷第9期

页      面：597-608页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071006[理学-神经生物学] 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：Project supported by the National Natural Science Foundation of China(Grant No.11672122) 

主　　题：thermosensitive neuron thermistor phototube bifurcation coherence resonance 

摘      要：A feasible neuron model can be effective to estimate the mode transition in neural activities in a complex electromagnetic *** neurons are exposed to electromagnetic field,the continuous magnetization and polarization can generate nonlinear effect on the exchange and propagation of ions in the cell,and then the firing patterns can be regulated *** conductivity of ion channels can be affected by the temperature and the channel current is adjusted for regulating the excitability of *** this paper,a phototube and a thermistor are used to the functions of neural *** phototube is used to capture external illumination for energy injection,and a continuous signal source is *** thermistor is used to percept the changes of temperature,and the channel current is changed to adjust the excitability of *** functional neural circuit can encode the external heat(temperature)and illumination excitation,and the dynamics of neural activities is investigated in *** photocurrent generated in the phototube can be used as a signal source for the neural circuit,and the thermistor is used to estimate the conduction dependence on the temperature for neurons under heat *** analysis and Hamilton energy are calculated to explore the mode *** is found that complete dynamical properties of biological neurons can be reproduced in spiking,bursting,and chaotic firing when the phototube is activated as voltage *** functional neural circuit mainly presents spiking states when the photocurrent is handled as a stable current *** white noise is imposed to detect the occurrence of coherence *** neural circuit can provide possible guidance for investigating dynamics of neural networks and potential application in designing sensitive sensors.