外加周期脉冲电流诱发的混沌神经放电节律及其分岔  

The Chaotic Neural Firing Rhythms and Its Bifurcation Induced by Periodic Pulse Stimulus

作　　者：莫娟[1] 

机构地区：[1]内蒙古科技大学数理与生物工程学院,内蒙古包头014010

出　　处：《唐山师范学院学报》2011年第5期25-29,共5页Journal of Tangshan Normal University

基　　金：内蒙古科技大学创新基金项目(2010NC060)

摘　　要：Clay对修改的HH模型在没有噪声的情况下施加周期激励发现了整数倍节律,然而,上述的工作都是仅针对多峰节律进行研究的,对于系统随激励变化时的节律转迁过程并没有探讨。针对修改后的HH模型,用一些时序分析方法加深对周期脉冲电流下诱发的混沌节律的认识,并且研究了系统在周期脉冲电流的幅值变化时放电节律的分岔过程。Clay discovery integer multiple rhythms by external periodic pulse stimulus without noise in the revised HH model,however,the above work is only study on the multi-mode rhythms,the transition of rhythms of the system is not studied when the stimulus changes.In this paper,the understandings of chaotic rhythms induced by periodic pulse currents have been enhanced,with some methods of time series analysis,and the bifurcation of firing rhythms of the system when the amplitude of periodic pulse current was changed have been studied.

关 键 词：周期脉冲电流 多峰节律 分岔 混沌 

分 类 号：Q424[生物学—神经生物学]