ELECTRICAL-CONDUCTIVITY IN CAT CEREBELLAR CORTEX
ELECTRICAL-CONDUCTIVITY IN CAT CEREBELLAR CORTEX
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DOI：
10.1016/0014-4886(74)90195-2
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发表时间：
1974-01-01
影响因子：
5.3
通讯作者：
WONG, YC
中科院分区：
文献类型：
--
作者：
YEDLIN, M;KWAN, H;WONG, YC
研究了猫小脑皮层分子层和颗粒层的电导率，并考虑了各向异性。涉及格林函数方法的适当数学分析给出了将电压与三个主要变量相关的方程：点电流源的大小、距源的距离以及三个正交方向中每个方向的电导率。通过实验测量电压作为小脑分子层和颗粒层距离的函数。这些测量的结果用于为导出的方程提供经验拟合。根据从拟合曲线获得的一组参数，可以计算电导率。电导率的样本值用于作为两个空间坐标的函数的三维电压图，以显示三个方向中的两个方向的各向异性程度。结果表明，颗粒层各方向的电导率均在2.0 mmho/cm量级。在分子层中，两个方向的电导率约为3.0mmho/cm，而另一个方向的电导率为1.7mmho/cm。由于两层之间的结构差异，颗粒层比分子层更具各向同性。
Electrical conductivity in molecular and granular layers of cat cerebellar cortex is studied, taking into account anisotropy. A suitable mathematical analysis involving a Green's function approach gives an equation relating voltage to three principal variables: the magnitude of the point current source, the distance from the source, and the conductivities in each of three orthogonal directions. Voltage is measured experimentally as a function of distance in the molecular and granular layers of the cerebellum. The results of these measurements are used to provide an empiric fit to the derived equations. From a set of parameters obtained from the fitted curves, the electrical conductivities are calculated. Sample values of the conductivities are used for three dimensional plots of voltage as a function of two space coordinates, to show the degree of anisotropy in two of the three directions. Results indicate that the conductivities for each direction in the granular layer are all of the order of 2.0 mmho/cm. In the molecular layer, the conductivity in two directions is about 3.0 mmho/cm, but in the other direction it is 1.7 mmho/cm. The granular layer is more isotropic than the molecular layer due to structural differences between the two layers.