研究神经电活动传导速度的一种谱估计方法

A SPECTRUM ESTIMATION METHODFOR STUDYING PROPAGATIONVELOCITIES OF NERVEACTIVITY

本文提出了一种分析神经干复合动作电位的方法。这种方法通过对复合动作电位进行两维谱分析:时域FFT谱分析和空域的Prony谱估计,从而确定神经干中各类纤维的传导速度,并估计具有不同传导速度的动作电位波形。仿真实验和动物实验给出了较为满意的结果。

<ABSTRACT> A spectrum estimation method was presented for studying propage tion velocities of nerve activity by compound action potential analysis. This method was based on two-dimensional spectrum analysis FFT for temporal frequencies and Prony method for spatial frequencies,and con- sists of two parts: 1. determining the propagation velocities of differ- ent fibers in a nerve trunk, and 2. estimating the action potential wavc- shapes of different velocities. The rcsults of simulations and animal ex- permints were satisfactory.