【作者】 金淇涛； 王江； 贾秋菊； 邓斌； 魏熙乐； 车艳秋；

【Author】 JIN Qitao~1,WANG Jiang~1,JIA Qiuju~2,DENG Bin~1,WEI Xile~1,CHE Yanqiu~3 1.Department of Electrical & Automation Eng,Tianjin University,Tianjin 300072,P.R.China 2.Department of Automation,Nankai University,Tianjin 300071,P.R.China 3.School of Automation and Electrical Engineering Tianjin University of Technology and Education,Tianjin 300222,P.R.China

【机构】 天津大学电气与自动化工程学院； 南开大学信息科学学院自动化系； 天津职业技术师范大学电气与自动化工程学院；

【摘要】 神经元是神经系统的基本单元,是信息处理的基本单位。神经元对外界刺激的响应特性和编码方式,本质上是通过神经元的生物物理特性的改变实现的。神经元所具有的很多性质,如适应性、敏感性、可靠性等与神经编码有直接关系。神经元放电适应性是指在持续外部刺激作用下,神经元放电频率下降的现象。已经有研宄表明神经元放电适应性是由各类离子电流相互作用的机制决定。因此,本文研宄适应性作用对神经元放电起始动力学影响,结合研宄神经元放电起始动态与神经编码的对应关系,进而揭示神经元适应性作用对神经编码影响的生物物理机制。更多还原

【Abstract】 Neuron is the basic unit of neuron system and information processing.The response property and information coding style of neuron to external stimulus is realized essentially through change of neurons physiological characteristics.Some important properties of neuron,such as adaptability,sensitivity and reliability,are both closely related to neural coding.During sustained stimulation,neuron spiking frequency may decrease,which is called neuron spiking adaptation.Former researches have shown that neuron spiking adaptation is decided by action potential initial dynamical mechanism of the interaction among various ion currents.In this paper,we set to study the influence of adaptation on action potential initial dynamical mechanism.Combining the result with the corresponding relationship between action potential initial dynamical mechanism and neural coding,we can further reveal the physiological mechanism of the impact of neuron spiking adaptation on neural coding.更多还原