Abstract
IN the course of an investigation of hue discrimination in the para-central parts of the human eye1, this property was measured also in the fovea at an intensity level of 0.95 e.f.c. The test field was bipartite, subtending an angle of 50′ at the eye, and surrounded by a white field (6°); the latter was separated from the test field by a black line. The results are shown in the accompanying figure, δΛ, the least perceptible difference, being plotted against Λ, the short-wave limit of each step; each point represents the mean of five readings. The high-brightness data for the
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Weale, J. Physiol. (in the press).
Wright, “Researches in Normal and Defective Colour Vision” (London: H. Kimpton, 1946).
Thomson and Trezona, J. Physiol. (in the press).
Lythgoe, Brit. J. Ophthal., 24, 21 (1940).
Granit, “Sensory Mechanisms of the Retina” (Oxford University Press, 1947).
Hartridge, Nature, 158, 303 (1946).
Dartnall, Brit. J. Ophthal., 32, 7 (1948).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
WEALE, R. Foveal Hue Discrimination in the Presence of a White Surround. Nature 166, 872–873 (1950). https://doi.org/10.1038/166872a0
Issue Date:
DOI: https://doi.org/10.1038/166872a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
