July 2019
Volume 19, Issue 8
Open Access
OSA Fall Vision Meeting Abstract  |   July 2019
Living briefly without blue-sensitive cones
Author Affiliations
  • Patrick Cavanagh
    Psychology, Glendon College, PBS, Dartmouth College
Journal of Vision July 2019, Vol.19, 37. doi:https://doi.org/10.1167/19.8.37
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      Patrick Cavanagh; Living briefly without blue-sensitive cones. Journal of Vision 2019;19(8):37. doi: https://doi.org/10.1167/19.8.37.

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

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Abstract

Don MacLeod taught me many things, but in the scientific realm, the most memorable was learning how to bleach my short-wavelength cones. This involved funneling an enormous amount of light through a small violet filter and into my right eye for about 1 minute. This is no longer allowed, so my reports may help some understand what the world looks like without short-wavelength cones. Don and I, along with Stuart Anstis, used this procedure to evaluate the B-cone input to luminance using the minimum motion technique. Recent work led by Pierre Pouget and Pierre Daye has shown that pupillometry offers a new way to test equiluminance without requiring conscious cooperation from the subject. The test results are similar to those of the minimum motion procedure.

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