Internal noise stochastic resonance in a circadian clock system
Internal noise stochastic resonance in a circadian clock system
复制标题
昼夜节律时钟系统中的内部噪声随机共振
DOI：
10.1063/1.1624053
复制
发表时间：
2003-12-08
影响因子：
4.4
通讯作者：
Xin, HW
中科院分区：
文献类型：
--
作者：
Hou, ZH;Xin, HW
本文利用随机模拟方法和化学朗之万方程研究了生物钟系统内部噪声的影响。研究发现，当确定性系统不振荡时，内部噪声可以引起昼夜节律振荡。噪声诱导的昼夜节律振荡的性能随着内噪声水平的变化而经历一个最大值，表明发生了内噪声随机共振。由于内部噪声的大小是通过系统尺寸的变化而改变的，因此这些现象也证明了一种系统尺寸共振。(C)2003年，美国物理学会。
We have studied the influence of internal noise on a circadian clock system using stochastic simulation methods and chemical Langevin equations. It is found that internal noise can induce circadian oscillations, when the corresponding deterministic system does not oscillate. The performance of the noise induced circadian oscillation undergoes a maximum with the variation of the internal noise level, showing the occurrence of internal noise stochastic resonance. Since the magnitude of the internal noise is changed via the variation of the system size, these phenomena also demonstrate a kind of system size resonance. (C) 2003 American Institute of Physics.