【摘要】 基于神经系统微观生理结构,给出具有空间分布随机延时的神经元间耦合,而这种随机延时描述峰电位从突触前神经元到突触后神经元在轴突上传播所需要的时间.记忆由时空发放的神经元集群表达.通过加入并改变噪声的强度,研究了噪声对Hodgk in-Hux ley(HH)神经元网络系统联想记忆的作用,在噪声涨落的作用下,系统取得了对不完整输入的记忆恢复,得到与熟知的随机共振完全一致的结果.更多还原

【Abstract】 Based on the reality of the microscopic biological structure in neural system,the couplings(among) those neurons were accompanied with randomly distributed time delays which describes the times needed for pulses propagating on the axons from the presynaptic neurons to the postsynaptic neurons.The memory is represented in the spatiotemporal firing pattern of the neurons.The associative memory function was researched by adding and adjusting the strength of the noise in the Hodgkin-Huxley neuronal network,the memory retrieval was accomplished with the fluctuations of the noise in the system,this is in accordance with the well known phenomenon of stochastic resonance.更多还原