摘要
本文研究了时滞和超极化激活的阳离子流I_(h)对抑制耦合的水蛭神经元的同步放电行为的调控.通过数值仿真揭示了时滞、耦合强度和I_(h)流都能诱发丰富的同步转迁行为,如从同步的周期-6簇放电到同步的周期-1簇放电.借助ISI分岔和快慢变量分离方法获得了I_(h)流诱导同步转迁行为的动力学原因.研究结果表明,时滞和I_(h)流都是影响水蛭神经元同步行为的重要因素.
In this paper,we investigate the regulation of the synchronous firing behavior of leech neurons with inhibitory coupling by time delay and hyperpolarization-activated cation current I h.Numerical simulations reveal that time delay,coupling strength,and I h current can all induce rich synchronous transition behaviors,such as from synchronous period-6 bursting to synchronous period-1 bursting.By means of ISI bifurcation and fast-slow variable dissection method,the dynamic reasons of I h current induced synchronous transition behavior are obtained.The results show that both time delay and I h current are important factors affecting the synchronous behavior of leech neurons.
作者
关利南
张新景
申建伟
Guan Linan;Zhang Xinjing;Shen Jianwei(School of Mathematics and Statistics,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)
出处
《动力学与控制学报》
2023年第8期24-30,共7页
Journal of Dynamics and Control
基金
国家自然科学基金资助项目(12272135,12202146)
河南省自然科学基金资助项目(212300410196)
河南省教育厅资助项目(23A110011)。
关键词
神经元
时滞
超极化激活的阳离子流
同步
分岔
neuron
time delay
hyperpolarization-activated cation current
synchronization
bifurcation
