单向耦合Hindmarsh-Rose系统的同步  

Synchronization in Unidirectional Coupled Hindmarsh-Rose System

作　　者：李纪[1] 李前树[1] 

机构地区：[1]北京理工大学化学物理研究所,北京100081

出　　处：《高等学校化学学报》2009年第4期789-791,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20433050);国家"111"计划(批准号:B07012)资助

摘　　要：采用数值模拟方法,研究了由两个具有不同初始条件单向耦合的H indm arsh-Rose神经元所组成系统的动力学行为.研究结果表明,耦合强度对两个神经元的同步具有重要的影响.当两个神经元的控制参数取值不同时,即在驱动系统和响应系统均处于混沌态及驱动系统处于周期振荡态,响应系统处于混沌态两种情况下,随耦合强度的增加其放电活动都能从不同步达到相位同步,最后实现近似完全同步.The dynamic behavior of two unidirectional coupled Hindmarsh-Rose neurons under different initial conditions were numerically studied. The results show that coupling strength has important influence on synchronization between the two neurons. When control parameters are different, that is, the drive system and the response system are both chaotic and the drive system is periodic oscillating while the response system is chaotic, under these two cases, the firings of the drive system and the response system both can transition from asynchrony to phase synchronization, and then to almost complete synchronization with the increase of coupling strength.

关 键 词：Hindmarsh-Rose模型 单向耦合 神经系统 同步 

分 类 号：O641[理学—物理化学]