噪声促进神经处理信息的研究

Study on noise increasing the information process of neuron

具有非线性阈值行为的神经系统常常工作在有大背景噪声的环境中,尽管如此,神经系统仍能高效地感知、分辨和处理信息。近10多年来,为探明神经系统在噪声环境中如何处理信息的机理,国内外研究人员做了大量的工作,本文着重回顾和总结了在与感觉知觉相关的神经系统中存在的随机共振现象,以及应用此种神经处理信息的方式来改善系统的功能方面所做的研究。文中还介绍了用于研究感受系统而采用的心理物理学方法的基本原理以及根据此原理得出的一些实际应用例子。这些工作为开发和应用新技术来弥补或增强人的感觉功能提供了依据。

The neuron system with nonlinear behaviors works in large noisy background, but it can effectively perceive, discriminate and process the information .This paper reviews the research on how neuron system processes the noisy information, and focus on whether the stochastic resonance phenomenon exists or not. In order to show the effect of noise on improving the sense function of neuron system, the pychophysics theory is introduced to explain some realistic examples about noise increasing the sense. These studies help to develop and apply new technology to increase human's sensor function.