Foveal Sensitivity for a Protanope in Relation to Stiles’ “Blue” and “Green” Mechanisms
- 1 June 1964
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 54 (6) , 839-841
- https://doi.org/10.1364/josa.54.000839
Abstract
The absolute threshold sensitivity for a protanopic fovea has been determined. The sensitivity curve gives a good fit with Stiles’s π4 curve in the longer wavelengths region, as expected. Results are compared with those of Graham and Hsia, and of Boynton et al., and the relations discussed. Three t.v.i. curves have also been obtained for the protanope, who does not seem to have a π2 branch. Moreover, the π1, branch is rather long, before π3 takes over.Keywords
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