Reliability of Measurements of the Steady Polarity Potential of the Eye
- 1 March 1939
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 25 (3) , 128-137
- https://doi.org/10.1073/pnas.25.3.128
Abstract
By means of a string galvanometer with a vacuum tube microvolt-meter used as input, ocular polarity potentials were recorded on 20 Girl Scouts 10-12, 20 normal school girls 17-19, and 16 mature [female][female] 41-65 yrs. old, on 2 different days. The correlation coefficient found was + .75 [plus or minus] .04, indicating that the measurement repeated itself quite satisfactorily. Some subjects showed potentials 3 or 4 times as high as others, and some were more variable than others from day to day. Causes of these individual differences are as yet unknown. Data on the 3 groups of [female][female] favored the interpretation of a curvilinear relationship between chronological age and eye potential. A consistent tendency was found for the eye potential to show effects from psychological states of apprehension and fear.This publication has 1 reference indexed in Scilit:
- The Steady Polarity Potential of the Human EyeProceedings of the National Academy of Sciences, 1939