文献类型：期刊文献

中文题名：高阶耦合条件下神经振子群活动的随机演化模型

英文题名：Stochastic evolution model of a neuronal oscillator population with higher order coupling

作者：章晓丹[1];王如彬[1];张志康[1];焦贤发[1,2]

机构：[1]华东理工大学信息科学与工程学院,认知神经动力学研究所,上海200237;[2]合肥工业大学理学院数学系,合肥230009

年份：2010

卷号：29

期号：1

起止页码：1

中文期刊名：振动与冲击

外文期刊名：Journal of Vibration and Shock

收录：CSTPCD;;EI(收录号：20101212786349);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(10672057,10872068)

语种：中文

中文关键词：神经振子群;高阶耦合;平均数密度;相位神经编码;外刺激

外文关键词：neuronal oscillator population;;higher order coupling;;average number density;;phase neural coding;;external stimulation

摘要：研究外刺激和噪声共同作用下耦合神经振子群的活动,着重考察高阶耦合条件下神经网络的相位编码和平均数密度的动态演化。研究结果表明,在高阶耦合条件下,当平均数密度的初始条件与高阶耦合项同阶或者当外刺激的谐波项含有与高阶耦合项同阶项的时候,高阶耦合的作用能够维持神经振子群已形成的多簇同期化状态。否则,高阶耦合的作用将不能维持稳定的多簇同期化运动。刺激条件下的具有高阶耦合的相位神经编码及其演化,是由刺激项和耦合的神经结构所决定的,编码效果是耦合和刺激共同作用的结果。
The activities of a coupled neuronal oscillator population in presence of both external stimulation and noise were studied,and the dynamical evolution of the phase neural coding and the average number density were studied in the neural network when the coupling among oscillators contained higher harmonics.The results indicated that under the condition of higher order coupling,if the initial condition of average number density or the external stimulation contains the same harmonics as those in the higher order coupling,the action of higher order coupling can maintain the already formed multiple-cluster synchronization state of the neuronal oscillator population;otherwise,the effect of higher order coupling cannot maintain the multiple-cluster synchronization activities of the neuronal oscillator population in a stable state;under the condition of stimulation,the phase neural coding and the evolution of the higher order coupled neuronal oscillator population are dependent upon the stimulation and the neural structure of the coupling,and the effect of phase neural coding is the correlative result of the coupling and the stimulation.