What colour is this? Blue.
No, can't you see it's green? Maybe it has some green in it
Okay, so is it blue or green? Yes!
Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar.
They’re always long threads of very confident people saying how there isn’t even a difference and I’m like lol
However, there are people who are tetrachromats, have cones most sensitive to a fourth frequency of light in their eyes, and those people are also overwhelmingly women.
It certainly seems to be rare enough to have no practical impact (except to perhaps the tetrachromat, who presumably has different metatmers perception etc.)
As far as I understand it takes having two X chromosomes with different versions of the gene that encodes the receptors for green, so only women can be tetrachromats.
" Best Score for your Gender -1000000 Worst Score for your Gender 1700045439
About your score: A lower score is better, with ZERO being a perfect score. The circle graph displays the regions of the color spectrum where your hue discrimination is low."
I hate this kind of stuff. WTF is that Best Score?
> Best Score for your Gender -2147483648
> Worst Score for your Gender 2147483647
https://boingboing.net/2011/08/12/how-language-affects-color...
If I recall, some early societies didn't have a distinction between green and blue. Given that blue often doesnt show up naturally outside of the sky and it's reflections. And in those populations they would be much less sensitive to distinctions in blue-green.
While comparing it shows typical scores as -(large number) to +(large number).
Fun test! I'd note for others, the quality of your screen can make a difference - I found one of the lines a lot easier on my phone (first try) than on my computer (second try) - though I got perfect both times.
Does anybody know how to read that?
Best: segmentation fault (core dumped)
This is different from tetrachromacy, where some women really do see more colors: https://www.optimax.co.uk/blog/tetrachromacy-superhuman-visi...
Edit: somehow didn't notice you'd linked this.
A sizeable percentage of women have tetrachromy (5% ? I forgot the exact number but it's not nothing). AFAIR men do not have tetrachromy.
So, basically, some women do actually see more colours than all the men and than most other women.
Maybe your wife has tetrachromic vision? (not sure how it's called)