2 ms·

I remember years ago some of the work in trying to find someone with tetrachromatic vision. Like in this article, they tried to "create shades of paint that cou

I remember years ago some of the work in trying to find someone with tetrachromatic vision. Like in this article, they tried to "create shades of paint that could only be distinguished by a machine — or a tetrachromat." It didn't work. While the researcher couldn't tell them apart, some people could. Including a man with (I presume) XY chromosomes, so couldn't be tetrachromatic. He was trained in some sort of visual art or design, which connects with the training aspect mentioned in the article. He also had to look closely at the colors, while it sounds like this new test is distinct enough to tetrachromats that response times should be significantly different.

bryanrasmussen 4y ago
as noted here https://news.ycombinator.com/item?id=32383729 https://news.ycombinator.com/item?id=32383729 some men can be tetrachromats, but what is more interesting to me, especially regarding idea of 'training' to use it, could someone like say this designer male reliably see like a tetrachromat through intensive training, although maybe not as easily and perhaps with an intermediate range.
- eesmith 4y ago
  The example you linked to was "men with Klinefelter syndrome, who have two X chromosomes and one Y chromosome". I wrote "a man with (I presume) XY" because I don't recall if the show I watched also described his chromosomes, but in order to be a reasonable control I don't see why they wouldn't have done so. (I can not find the video, and it's been too long for me to recall more details than I described.) Training certainly helps identify nuances in color. Color terms are also culturally dependent. https://en.wikipedia.org/wiki/Color_term#Cultural_differences https://en.wikipedia.org/wiki/Color_term#Cultural_difference... That said, there should be no reason to believe training will result in an ability to see like a tetrachromat through intensive training - the cones don't have a differentiating signal to train upon.

bryanrasmussen 4y ago

as noted here https://news.ycombinator.com/item?id=32383729 https://news.ycombinator.com/item?id=32383729 some men can be tetrachromats, but what is more interesting to me, especially regarding idea of 'training' to use it, could someone like say this designer male reliably see like a tetrachromat through intensive training, although maybe not as easily and perhaps with an intermediate range.

eesmith 4y ago
The example you linked to was "men with Klinefelter syndrome, who have two X chromosomes and one Y chromosome". I wrote "a man with (I presume) XY" because I don't recall if the show I watched also described his chromosomes, but in order to be a reasonable control I don't see why they wouldn't have done so. (I can not find the video, and it's been too long for me to recall more details than I described.) Training certainly helps identify nuances in color. Color terms are also culturally dependent. https://en.wikipedia.org/wiki/Color_term#Cultural_differences https://en.wikipedia.org/wiki/Color_term#Cultural_difference... That said, there should be no reason to believe training will result in an ability to see like a tetrachromat through intensive training - the cones don't have a differentiating signal to train upon.