bees-bees-fear: afleshjackforblainecharitydrive: dbvictoria:25% of the people have a 4th cone and se
bees-bees-fear: afleshjackforblainecharitydrive: dbvictoria:25% of the people have a 4th cone and see colors as they areGiven the sudden interest for the color of dresses and vision, here some of the fascinating findings we did recently.The color nuances we see depend on the number and distribution of cones (=color receptors) in our eye. You can check this rainbow: how many color nuances do you count?You see less than 20 color nuances: you are a dichromats, like dogs, which means you have 2 types of cones only. You are likely to wear black, beige, and blue. 25% of the population is dichromat.You see between 20 and 32 color nuances: you are a trichromat, you have 3 types of cones (in the purple/blue, green and red area). You enjoy different colors as you can appreciate them. 50% of the population is trichromat.You see between 33 and 39 colors: you are a tetrachromat, like bees, and have 4 types of cones (in the purple/blue, green, red plus yellow area). You are irritated by yellow, so this color will be nowhere to be found in your wardrobe. 25% of the population is tetrachromat.You see more than 39 color nuances: come on, you are making up things! there are only 39 different colors in the test and probably only 35 are properly translated by your computer screen anyway :)It is highly probable that people who have an additional 4th cone do not get tricked by blue/black or white/gold dresses, no matter the background light ;)(x) I see 21 colors. I had no idea there are so many more. I can see all 39 and lemme tell you I saw the dress wrong the first time 24% of the population is not tetrachromat. Tetrachromats are rare enough in humans that there is literally one confirmed case in existence. One. On top of that, tetrachromancy is almost certainly not related to the blue/white dress phenomenon; while it really is a very strange visual illusion it is almost certainly a variation in perception rather than a variation in sensation. Whether you see the dress as blue or white seems to depend more on whether you see the photo as a bleached image in too-bright light or a photo taken in the shade with bright light in the background than on the actual colors you perceive. This is total bullshit and it makes me pretty cranky. -- source link