%0 Journal Article
%T THE DYNAMICAL MECHANISMS FOR THE SENSITIVE RESPONSE OF EXCITABLE CELLS WITH CHAOTIC FIRING TO EXTERNAL STIMULATION<br>混沌放电的可兴奋性细胞对外界刺激反应敏感的动力学机制
%A XIE Yong
%A XU Jian-xue
%A KANG Yan-mei
%A DUAN Yu-bin
%A HU San-jue
%A YANG Hong-jun
%A <br>谢勇
%A 徐健学
%A 康艳梅
%A 段玉斌
%A 胡三觉
%A 杨红军
%J 生物物理学报
%D 2004
%I 
%X It has been observed that aperioidic firing neurons have higher sensitivity than periodic firing ones in the experiments about the injured dorsal root ganglion neurons in rats subjected to norepinephrine (NE), tetraethylammonium (TEA), high Ca2+ solutions, et al. Existing results show that a number of apeirodic firing neurons actually exhibit deterministic chaotic motions, for example, chaotic spiking, chaotic bursting, integer multiple spiking, and so on. Bifurcations, crises and sensitive dependence of chaotic motions on parameters are considered as the dynamic mechanisms for the phenomena of sensitive response through the analysis of the bifurcation structure and the calculation of unstable periodic orbits constituting the most fundamental building blocks of a chaotic attractor in terms of the modified pancreatic he information of periodic orbits.
%K Chaotic firing
%K Unstable periodic orbits
%K Mean firing rate
%K Crisis
%K Pancreatic<br>混沌放电
%K 不稳定周期轨道
%K 平均发放率
%K 激变
%K 背根节神经元
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=049FFCF1DF592D5B&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=38B194292C032A66&sid=79D2EF35F60110C2&eid=CEC789B3C68C3BB3&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=0&reference_num=30