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Science 31 August 1962:
Vol. 137. no. 3531, pp. 666 - 668
DOI: 10.1126/science.137.3531.666
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Articles

Retinal Receptor Potentials and their Linear Relationship to Light Intensity

R. Fatehchand 1, M. Laufer 1, and G. Svaetichin 1

1 Instituto Venezolano de Investigaciones Cientificas, Caracas, Venezuela

After treatment of the isolated retina of a fish (Centropomus) with ammonia (NH3), the electrical responses to light are confined to the receptor layer. These receptor responses are fast in light adaptation and very slow in dark adaptation. The light-adapted responses have thresholds 3 to 4 logarithmic units of light intensity higher than the dark- adapted ones. Both kinds of responses are linearly related to light intensity up to the appearance of saturation. Interactions between receptors and adjacent glia cells appear to be involved in adaptation.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Early and Late Receptor Potentials of Monkey Cones and Rods.
K. T. Brown, K. Watanabe, and M. Murakami (1965)
Cold Spring Harb Symp Quant Biol 30, 457-482
   Abstract »    PDF »
Refraction and Visual Physiology.
H. L. BAIR and T. G. MARTENS (1964)
Arch Ophthalmol 71, 889-915
   PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)