TY  - JOUR
PY  - 1922//
TI  - The effect on foveal vision of bright (and dark) surroundings. V
JO  - Journal of experimental psychology
A1  - Adams, E. Q.
A1  - Cobb, P. W.
SP  - 39
EP  - 45
VL  - 5
IS  - 1
N2  - 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 /> 
LA  - 
SN  - 0022-1015
UR  - http://dx.doi.org/10.1037/h0073379
ID  - ref1
ER  -