Effect of stimulus area and intensity upon the light-adapted electroretinogram.

Abstract

Expts. were conducted to test the effects of stimulus area and intensity upon the light adapted electroretinogram. Conventional recording procedures and techniques were used. It was found that inversely related stimulus areas and intensities may be used to produce criterion magnitudes of both A- and X-wave response. The A- and X-wave responses do not appear to depend in any simple way upon the retinal region which is directly stimulated. The possibility that scattered light, or other factors, may be responsible for the results is discussed.