That answers my question about brain vs genes, Tom. I wondered if some
of it could be learned. I didn't have the energy to take it again,
focusing harder on the blue-greens.

Here's a nice technical article on color vision. Interesting that some
women have four types of color sensing cells in their eyes when
everybody else has three!

http://en.wikipedia.org/wiki/Color_vision

One of my artist/quilting friends scored 0. I wasn't a bit surprised.

But she sent it to another artist friend who scored 1100! Surely that's
a bad monitor.

> I scored "22" the first try - with a likely perception deficiency in a pinkish part of the spectrum. My wife would probably have guessed it to be much much worse ;0)
>
> But... I tried it a second time and concentrated real hard and got an "8". Whoo hoo! I'm not as perception deficient as we'd thought.
>
> Phew! That's like work though. I don't think I'll give it a third try! I just be happy with that 8.