%0 Journal Article
%T The effect on foveal vision of bright (and dark) surroundings. V
%J Journal of experimental psychology
%D 1922
%A Adams, E. Q.
%A Cobb, P. W.
%V 5
%N 1
%P 39-45
%X 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)<p />
%G 
%I American Psychological Association
%@ 0022-1015
%U http://dx.doi.org/10.1037/h0073379