Scientists have found a woman whose eyes have a new type of color receptor
Why would only women be capable of tetrachromacy?<p>I am a man, but if the test is made public, I would be interested in testing myself. I am not color blind according to color blindness tests, but there have been instances where I disagreed on the color something was with others and while I could consistently use the name that they used for it, I felt it really ought to have been named something else. One involves &quot;green&quot; status LEDs on electronics, which seem more in common with yellow than green to me. They look different from yellow, but they seem closer to yellow than green to me and for lack of a better word, I would rather call them yellow. If I could use a different name for the color, mapping it to green when interacting with others would seem less weird. Another involved the paint of a house when I was young, whose color seemed to poorly resemble what my parents said it was when it was dark. The house has since been repainted. Having three primary colors never made much sense to me either, but that could just be my own ignorance.<p>Anyway, I am sure that there are many more variations in human vision than we realize. The dress incident brought that to light:<p><a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;The_dress_(viral_phenomenon)" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;The_dress_(viral_phenomenon)</a><p>It would be nice to have ways of categorizing them.