僧帽细胞电位发放的模型分析  

The Model Analysis of Potential Spike on Mitral Cells

作　　者：刘深泉[1] 范涛[1] 

机构地区：[1]华南理工大学应用数学系

出　　处：《北京生物医学工程》2005年第1期1-7,共7页Beijing Biomedical Engineering

基　　金：国家自然科学基金项目 (1990 2 0 0 5 )资助

摘　　要：本文构造从感觉神经元、僧帽细胞到大脑皮层神经元 ,并反馈到颗粒细胞的嗅觉神经系统模型。数值分析模型结构中各个神经元的电位发放 ,特别是嗅小球内的细胞电位变化 ,结果显示僧帽细胞的发放对感觉神经元的刺激变化较大 ,僧帽细胞对皮层细胞的相图出现各种模式 ,从而模型刻画了嗅觉系统中僧帽细胞的信息传递特性。The model of olfactory neural system from sensory neurons, mitral cells to the cortex neurons of brain and feedback to granule cells is constructed. The numerical methods are used to analyze potential spike of neurons in this model. The potential spike changing of cell in the olfactory bulb reveal that the stimulus to sensory neurons can affect the spike of mitral cell greatly. Also the phase plane of mitral cell to cortex cell have various patterns. This model structure describes the property of message transmitting of mitral cell in the olfactory system.

关 键 词：皮层细胞 感觉神经元 发放 大脑皮层 神经系统 电位变化 刺激 嗅觉系统 颗粒细胞 小球 

分 类 号：R338[医药卫生—人体生理学] R651.3[医药卫生—基础医学]