%0 Journal Article
%T BIFURCATION SCENARIO RHYTHM IN THE FIRING PATTERN TRANSITION OF A NEURAL PACEMAKER<br>神经起步点自发放电节律及节律转化的分岔规律
%A LI Li
%A GU Hua-guang
%A YANG Ming-hao
%A LIU Zhi-qiang
%A REN Wei
%A <br>李莉
%A 古华光
%A 杨明浩
%A 刘志强
%A 任维
%J 生物物理学报
%D 2003
%I 
%X Abundant neural firing patterns were observed in the experimental neural pacemaker, such as periodic bursting, periodic spiking, chaotic bursting, chaotic spiking and stochastic rhythm. The neural firing rhythm changed from period 1 bursting to period 1 spiking via a complex bifurcation scenario, in which period-doubling bifurcation to chaotic bursting, chaotic bursting to chaotic spiking via crisis and chaotic spiking to period spiking via inverse period-doubling bifurcation were exhibited, when extracellar calcium concentration (Ca2+]a) was decreased. In the relevant theoretical neuronal model such as Chay model, neural firing patterns and firing pattern transition regularity similar to the experiment were observed when the physiological parameters was changed. The results not only showed the regularity of neural firing bifurcation scenario in real neuronal system, but also provided a theoretical foundation for the study of neural coding.
%K Bifurcation
%K Neuron
%K Spontaneous discharge
%K Period-doubling bifurcation
%K Chaos<br>分岔
%K 神经元
%K 自发放电
%K 倍周期分岔
%K 混沌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=296E73B5504DA726&yid=D43C4A19B2EE3C0A&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=3BAAE0DA6093AC05&eid=0BD4FAD4A90498AB&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=2&reference_num=18