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FLASH PHOTOLYSIS IN HUMAN CONES *
Author(s) -
Rushton W. A. H.
Publication year - 1964
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1964.tb08174.x
Subject(s) - brightness , adaptation (eye) , photoisomerization , mechanism (biology) , flash (photography) , optics , computer science , physics , chemistry , isomerization , quantum mechanics , biochemistry , catalysis
Summary 1. This paper is in three parts. Part I briefly summarizes the main facts and interpretations that are generally accepted as to the effect of light upon vision, adaptation and after‐images. 2. Part II considers in some detail the effect upon adaptation and after‐images of a flash of light sufficiently bright to generate abnormal visual pigments. A summary of these new findings is given at the end of Part II, together with a schema for the photoisomerization, bleaching and regeneration of cone pigments in the living eye. 3. Part III puts forward a rough mechanism that will account quantitatively for observed relations of brightness and threshold in adaptation. The manner in which flashes may modify this mechanism is suggested.