Control of firing activities in thermosensitive neuron by activating excitatory autapse  

作　　者：Ying Xu Jun Ma 徐莹;马军(School of Mathematics and Statistics,Shandong Normal University,Ji’nan 250014,China;Department of Physics,Lanzhou University of Technology,Lanzhou 730050,China;School of Science,Chongqing University of Posts and Telecommunications,Chongqing 430065,China)

机构地区：[1]School of Mathematics and Statistics,Shandong Normal University,Ji’nan 250014,China [2]Department of Physics,Lanzhou University of Technology,Lanzhou 730050,China [3]School of Science,Chongqing University of Posts and Telecommunications,Chongqing 430065,China

出　　处：《Chinese Physics B》2021年第10期171-179,共9页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12072139 and 12062009).

摘　　要：Temperature has distinct influence on the activation of ion channels and the excitability of neurons,and careful change in temperature can induce possible mode transition in the neural activities.The formation and development of autapse connection to neuron can enhance its self-adaption to external stimulus,and thus the firing patterns in neuron can be controlled effectively.The autapse is activated to drive a thermosensitive neuron,which is developed from the FitzHugh-Nagumo neural circuit by incorporating a thermistor,and the dynamics in the neural activities is explored to find mode dependence on the temperature and autaptic current.It is found that the firing modes can be controlled by temperature,and the neuron is wakened from resting state to periodic oscillation with the increase of temperature.Furthermore,the intensity and the intrinsic time delay in the autapse are respectively adjusted to control the neural activities,and it is confirmed that appropriate setting for autaptic current can balance and enhance the temperature effect on the neural activities.

关 键 词：thermosensitive neuron autapse firing pattern BIFURCATION 

分 类 号：R749.94[医药卫生—神经病学与精神病学]