CAT LOCAL ELECTRORETINOGRAM TO INCREMENTAL STIMULI

被引：43

作者：

RODIECK, RW

FORD, RW

机构：

[1] Brain Research Unit, Department of Physiology, University of Sydney, Sydney, NSW

来源：

VISION RESEARCH | 1969年 / 9卷 / 01期

基金：

英国医学研究理事会;

关键词：

D O I：

10.1016/0042-6989(69)90028-5

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Small retinal potentials generated in response to large area incremental stimuli were studied with averaging techniques. Below a retinal illumination of about 10-5 scotopic lm/mm2, the responses recorded between an electrode deep in the retina and an intravitreal electrode (local electroretinogram - LERG) to small (≤40%) incremental changes in light intensity appear to be linearly related to the incremental stimuli. The linear response consists of two components: the late receptor potential and the d.c. component. A pigment epithelium response was found to be normally absent from LERGs produced by large stimulus spots. This is consistent with an analysis of potentials generated within the eye. Above a retinal illumination of about 10-5 scotopic lm/mm2 the linear response is abolished and a new component, termed the vitreal non-linear component, appears. We interpret the disappearance of the linear response as a saturation of the rod mechanism. © 1969.

引用

页码：1 / +

页数：1

共 59 条

[1]

Aguilar M., 1954, OPT ACTA, V1, DOI [DOI 10.1080/713818657, 10.1080/713818657]

[2] SOME PROPERTIES OF COMPONENTS OF CAT ELECTRORETINOGRAM REVEALED BY LOCAL RECORDING UNDER OIL [J].