NOISE ENHANCEMENT OF INFORMATION-TRANSFER IN CRAYFISH MECHANORECEPTORS BY STOCHASTIC RESONANCE
NOISE ENHANCEMENT OF INFORMATION-TRANSFER IN CRAYFISH MECHANORECEPTORS BY STOCHASTIC RESONANCE
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DOI：
10.1038/365337a0
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发表时间：
1993-09-23
期刊：
影响因子：
64.8
通讯作者：
MOSS, F
中科院分区：
文献类型：
--
作者：
DOUGLASS, JK;WILKENS, L;MOSS, F
在线性信息论、电子工程和神经生物学中，随机噪声传统上被认为是对信息传输的损害。随机共振（SR）是一种非线性的统计动力学，通过优化的随机噪声1 -4的存在，增强了多态系统中的信息流。SR用于信号接收的一个主要结果是，它使得有可能在弱周期信号的检测方面有实质性的改进。虽然SR最近已被证明在几个人工物理systems 5，6，它也可能发生自然，和一个有趣的可能性是，生物系统已经进化的能力，利用SR优化内源性噪声源。感觉系统是寻找SR的一个明显的地方，因为它们擅长在嘈杂的环境中检测微弱信号。在这里，我们证明SR使用外部噪声应用于小龙虾mechanoreceptor细胞。我们的研究结果表明，单个神经元可以提供一个生理基板的SR在感觉系统。
IN linear information theory, electrical engineering and neurobiology, random noise has traditionally been viewed as a detriment to information transmission. Stochastic resonance (SR) is a nonlinear, statistical dynamics whereby information flow in a multistate system is enhanced by the presence of optimized, random noise1-4. A major consequence of SR for signal reception is that it makes possible substantial improvements in the detection of weak periodic signals. Although SR has recently been demonstrated in several artificial physical systems5,6, it may also occur naturally, and an intriguing possibility is that biological systems have evolved the capability to exploit SR by optimizing endogenous sources of noise. Sensory systems are an obvious place to look for SR, as they excel at detecting weak signals in a noisy environment. Here we demonstrate SR using external noise applied to crayfish mechanoreceptor cells. Our results show that individual neurons can provide a physiological substrate for SR in sensory systems.