Thomas Young and Colour Blindness (extra footage)

[Muscleduck]

If I remember correctly 3% of males has daltonism, which is red-green colorblindness. In females this number is actually at least 10 times lower if I'm correct.

[johnjaksic61]

simply fascinating!

[Direkin]

Hrm... for some reason I always think of Notts Trent as a polytechnic even though it does award degrees.

[hedgerowpete]

loving it, great stuff

[chrisofnottingham]

What I find odd is that the frequency response curves of the actual receptors in the human eye don't appear to match the primary RGB colors very well at all.

[puncheex]

@chrisofnottingham: Yes. In fact the three receptors are violet, green and green-yellow. That means that to see red through yellow our brain has to compare the difference in signal between the G and YG to the absolute value of one of them (probably YG), a fairly sophisticated computation that happens over the entire visual field at some astounding rate, or more likely continuously in an analog fashion. Essentially, R = (YG - G) / YG .

[jeebersjumpincryst]

Im male and blue-green colourblind, but only blue greens that are close(similiar) to each other in hue/shade (not physical proximity lol).

When I lived in england, my wife used to get mad at me for not being able to see and appreciate those little blue flowers that come out en masse in springtime at the borde hill (?) gardens. just looked like a sea of emerald green grass to me lol. used to infuriate her tho...

[Z1BABOUINOS]

tick-tock......

Let me see....

Do I cut the red wire... or the green one? hmmm or maybe....

[anonysquirrel]

Can you distinguish red from green, say at a traffic light?

[SchumiUCD]

@anonysquirrel The red one is at the top, green at the bottom!

[samipso]

Imo one of the most interesting extra footage videos.

[nottinghamscience]

Make sure you check out the main Young video (if you are not a FavScientist subscriber... which you should be)

Link is in the description...

[schmidtbag]

its not just simply 10% of males are colorblindness, but have at least some degree of colorblindness. i can see all colors, but i'm able to pass tests that prove if you are colorblind, so i'm only partially colorblind. i do tend to have issues with seeing certain colors correctly, mainly purples.

[Aquelanter]

Color-blindness (or selective color-seeing as I like to call it) is my primary quality.

[DeoMachina]

This is interesting, I'm also colourblind (and I want to become an electrician ;_; )

[sirpete]

@DeoMachina It would be possible to identify the colors with a phone camera and a program that shows the histogram or the color component values. So being an electrician should be possible with some help from technology. Also it would be rather simple to write an iPhone program to identify colors.

[DeoMachina]

@sirpete I heard about a guy who actually had a camera built into his head for that purpose. He did it mostly to secure the title of "worlds first cyborg" though.