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Science 6 March 1964:
Vol. 143. no. 3610, pp. 1029 - 1031
DOI: 10.1126/science.143.3610.1029
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Articles

Light Adaptation Kinetics: The Influence of Spatial Factors

William S. Battersby 1 and Irving H. Wagman 2

1 Psychophysiology Laboratory, Illinois State Psychiatric Institute, Chicago
2 Biomechanics Laboratory, University of California Medical Center, San Francisco

Reducing the target diameter of an adapting (conditioning) flash of light results in a progressive rise in the conventional light adaptation curve, as measured with a small superimposed test flash presented at the end of adapting flashes of variable duration. When both targets are the same size, an abrupt and marked rise in threshold is obtained, resulting from a unique effect that occurs near the termination of the adapting flash. This effect can be demonstrated by means of a variable delay procedure, and it indicates that neural as well as photo-chemical processes limit the time course of light adaptation.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Optics and Visual Physiology.
M. L. RUBIN (1966)
Arch Ophthalmol 75, 836-879
   PDF »
Optics and Visual Physiology.
M. L. RUBIN (1965)
Arch Ophthalmol 73, 863-889
   PDF »


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