August 1964
Volume 3, Issue 4
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Articles  |   August 1964
A Hue Discrimination Defect in so-called Normal Carriers of Color Vision Defects
Author Affiliations
  • ALEX E. KRILL
    Eye Research Laboratories, the University of Chicago, Chicago, Ill.
  • ARLENE SCHNEIDERMAN
    Eye Research Laboratories, the University of Chicago, Chicago, Ill.
Investigative Ophthalmology & Visual Science August 1964, Vol.3, 445-450. doi:https://doi.org/
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      ALEX E. KRILL, ARLENE SCHNEIDERMAN; A Hue Discrimination Defect in so-called Normal Carriers of Color Vision Defects. Invest. Ophthalmol. Vis. Sci. 1964;3(4):445-450. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The Farnsworth-Munsell 100-hue test was used to study 13 carriers of color vision defects. All carriers were found to be normal with the H-R-R and Ishihara pseudoisochromatic plates. Fifty normal subjects were used as the control group. The carriers showed a significantly poorer performance than the normal control group (p < .0005). The increase in errors in carriers was concentrated in the area of poorest performance of normal subjects. The performance of each subject was also related to age (p < .005). The status of carriers of sex-linked recessive defects is best explained by the recently advanced single X chromosome inactivation hypothesis.

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