%0 Journal Article
%T A TYPE OF NEW NEURAL FIRING PATTREN INDUCED BY AUTONOMOUS STOCHASTIC RESONANCE LYING IN A PERIOD ADDING BIFURCATION SCENARIO<br>神经放电加周期分岔中由随机自共振引起一类新节律
%A YANG Ming-hao
%A GU Hua-guang
%A LI Li
%A LIU Zhi-qiang
%A REN Wei
%A <br>杨明浩
%A 古华光
%A 李莉
%A 刘志强
%A 任维
%J 生物物理学报
%D 2004
%I 
%X A period adding bifurcation scenario from period 1 bursting to period 2 bursting was discovered in an experimental neural pacemaker when extra-cellular calcium concentration (o) was decreased. A new firing pattern was observed in the procedure via which period n (n=1, 2, 3) bursting was changed into period n+1 bursting. The behavior of the new firing pattern was an alternation between period n burst and period n+1 burst. The series of interval between two continual period n+1 burst exhibited approximate integer multiple characteristics. The deterministic neuronal firing model (Chay model) could simulate only the period adding bifurcation scenario in which period n bursting was changed into period n+1 bursting directly. The period adding bifurcation scenario and the new firing pattern similar to the experiment could be simulated in the stochastic Chay model. Moreover, the new firing pattern was verified to be caused by noise through the effect of autonomous stochastic resonance (ASR). It not only interpreted the experimental discovery, but also extended the parameter regions where ASR could be generated from Hopf bifurcation point to period adding bifurcation point. Meanwhile, the parameter regions in which noise plays an important role in neural firing and neural coding were extended.
%K Neural firing
%K Interspike interval
%K Period adding bifurcation
%K Autonomous stochastic resonance
%K Integer multiple rhythm<br>神经放电
%K 峰峰间期
%K 加周期分岔
%K 随机自共振
%K 整数倍节律
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=DCA48C2238DB105D&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=BC88D6B0750E09D1&eid=47F7649551A37CFC&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=1&reference_num=21