Whenever light strikes the eye of an animal there is a voltage difference produced between the front and back of the eye. This voltage difference originates in the retina of the vertebrate eye and in the sense cells of the compound eye. A record of the voltage change may be obtained by means of an oscillograph and is referred to as an electroretinogram (ERG). The electroretinogram may be used for the study of various visual phenomena.
Proceedings of the Iowa Academy of Science
©1942 Iowa Academy of Science, Inc.
Jahn, Theodore Louis
"The Measurement of Visual Phenomena by Means of the Electroretinogram,"
Proceedings of the Iowa Academy of Science, 49(1), 533-534.
Available at: https://scholarworks.uni.edu/pias/vol49/iss1/104