Discrete potential waves can be recorded from cells in the eye of Limulus both in darkness and in dim illumination. With constant illumination the frequency of these waves is linearly related to light intensity and the distribution of intervals between waves follows an exponential function. The latency of waves evoked by short flashes of light is usually long and variable and the number of waves evoked by a flash varies randomly, obeying approximately a Poisson distribution. The results of experiments with flashes of light have been compared with the predictions derived from the hypotheses that one, two, or three quanta of light are required for production of one wave. The agreement of the data with the theory can be considered acceptable for the "one quantum" hypothesis, is less satisfactory for the "two quanta" hypothesis, and is very poor for the "three quanta" hypothesis.
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1 January 1964
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January 01 1964
Probability of Occurrence of Discrete Potential Waves in the Eye of Limulus
M. G. F. Fuortes,
M. G. F. Fuortes
From the Ophthalmology Branch, National Institute of Neurological Diseases and Blindness, National Institutes of Health, Bethesda, Maryland; Department of Physics, George Washington University, Washington, D.C., and Marine Biological Laboratory, Woods Hole, Massachusetts
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S. Yeandle
S. Yeandle
From the Ophthalmology Branch, National Institute of Neurological Diseases and Blindness, National Institutes of Health, Bethesda, Maryland; Department of Physics, George Washington University, Washington, D.C., and Marine Biological Laboratory, Woods Hole, Massachusetts
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M. G. F. Fuortes
From the Ophthalmology Branch, National Institute of Neurological Diseases and Blindness, National Institutes of Health, Bethesda, Maryland; Department of Physics, George Washington University, Washington, D.C., and Marine Biological Laboratory, Woods Hole, Massachusetts
S. Yeandle
From the Ophthalmology Branch, National Institute of Neurological Diseases and Blindness, National Institutes of Health, Bethesda, Maryland; Department of Physics, George Washington University, Washington, D.C., and Marine Biological Laboratory, Woods Hole, Massachusetts
Received:
April 15 1963
Online ISSN: 1540-7748
Print ISSN: 0022-1295
Copyright ©, 1964, by The Rockefeller Institute Press
1964
J Gen Physiol (1964) 47 (3): 443–463.
Article history
Received:
April 15 1963
Citation
M. G. F. Fuortes, S. Yeandle; Probability of Occurrence of Discrete Potential Waves in the Eye of Limulus . J Gen Physiol 1 January 1964; 47 (3): 443–463. doi: https://doi.org/10.1085/jgp.47.3.443
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