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Citation |
Adams EQ, Cobb PW. J. Exp. Psychol. 1922; 5(1): 39-45. |
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Copyright |
(Copyright © 1922, American Psychological Association) |
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DOI |
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PMID |
unavailable |
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Abstract |
On the basis of certain assumptions derived from the all-or-none hypothesis regarding the nature of the nerve processes of the retina, the authors have formulated quantitative expressions for the effect of bright and dark surroundings on the difference-threshold of foveal vision. Comparison of the values calculated from these formulae with the limens for brightness obtained in actual experiment reveals a substantial agreement between the two sets of data. The range of application of the formulae to various conditions in visual experimentation remains still to be determined. From Psych Bulletin 19:09:00581. (PsycINFO Database Record (c) 2012 APA, all rights reserved) |