本文所依据的实验是对硬骨鱼类的Ｍａｕｔｈｎｅｒ细胞进行的，刺激鱼的不同部位可以在Ｍａｕｔｈｎｅｒ细胞的树突上诱发出兴奋性突触后电位，本文使用电缆方程描述这种电紧张扩布过程，对记录下来的多组兴奋性突触后电位进行分析后，预测鲫鱼Ｍａｕｔｈｎｅｒ细胞腹侧树突的膜特征参数（空间常数λ＝３４６±８０微米，时间常数ｔ＝１．９４±０．６２毫秒），并给出树突上不同部位上空触的作用随时间变化的图示。 This paper is based on the experiment of the bony fish Mauthner cells to stimulate the different parts of the fish Mauthner cells in the dendrites can induce excitatory postsynaptic potential, this paper describes the use of cable electrical tension expansion process , The recorded groups of excitatory postsynaptic potentials were analyzed to predict membrane characteristic parameters of the ventral dendrites of Mauthner crucian carp (space constant λ = 346 ± 80 μm, time constant t = 1.94 ± 0.62 Milliseconds) and gives a graphical representation of the effect of air-touch over different parts of the dendrites over time.