The effect of light history on the photolysability of human visual pigments in situ
- 15 February 1966
- journal article
- research article
- Published by The Royal Society in Proceedings of the Royal Society of London. B. Biological Sciences
- Vol. 164 (994), 96-105
- https://doi.org/10.1098/rspb.1966.0015
Abstract
The foveae of 2 subjects were studied by the method of rapid fundus reflectometry (RFR). Difference spectra were obtained after the eye had dark-adapted for at least 12 min. and then been exposed to a bleaching light of variable intensity and spectral composition. It is found that if the period of dark-adaptation is preceded by an exposure to intense light, designed to eliminate the previous light history of the retina, the density spectrum is lower than in the absence of such a clearing exposure, provided the latter is such as to furnish on average more than 1 quantum per visual pigment molecule within approximately 500 msec. It is shown that, within limits, cone pigments studied with RFR show properties similar to those obtained with visual purple in vitro.This publication has 15 references indexed in Scilit:
- Analysis of Foveal DensitometryNature, 1965
- Photo‐labile changes and the directional sensitivity of the human foveaThe Journal of Physiology, 1964
- Interpretation of Retinal DensitometryJournal of the Optical Society of America, 1964
- Cone pigments in the normal human foveaVision Research, 1963
- Cone pigment kinetics in the protanopeThe Journal of Physiology, 1963
- Studies on the flash photolysis of visual pigments. 2. Production of thermally stable photosensitive pigments in flash-irradiated solutions of frog rhodopsinBiochemical Journal, 1961
- Photo-sensitive Reactions in Foveae of Normal and Cone-monochromatic ObserversOptica Acta: International Journal of Optics, 1959
- Changes in the Perceived Color of Very Bright StimuliScience, 1958
- THE ACTION OF LIGHT ON RHODOPSINProceedings of the National Academy of Sciences, 1958
- The influence of variations in the light history of the eye upon the course of its dark adaptationThe Journal of Physiology, 1949