I'm an artist and have long noticed that I can differentiate between many more shades of blue, and other colors, than most. Most humans have trichromatic vision, and still there's so much variation in ability to see colors, for one reason or another.
There is research being done on the possibility of human tetrachromats. A human tetrachromat may see wavelengths beyond those of a typical human being's eyesight, and may be able to distinguish colors that to a human appear to be identical.
There are also visual perception differences due to differences in the human brain rather than the human eye.
I don't think we're done exploring the variations in human vision...
What if the blue I see... Isn't the same color blue you see?
maybeimalion
2012/06/04 02:09:59
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what if oxygen makes our voices deeper and helium brings them back to normal
Blessings to all and,
May all be well with you ^_^
As it happen, we probably do not see the same blue, we simply agree that something is blue.
The visible blue light has a wavelength of about 475 nm. Because the blue wavelengths are shorter in the visible spectrum, they are scattered more efficiently by the molecules in the atmosphere. This causes the sky to appear blue.
The retina of your eye consists of a very thin layer of nerve cells and contains two types of photoreceptors, rods and cones. There are approximately 6 million cones in our retina, and they are sensitive to a wide range of brightness. The three different types of cones are sensitive to short, medium and long wavelengths, respectively. Cones are active at high light levels and allow us to see color and fine detail directly in front of us.
These photoreceptors convert light (photons) into electro-chemical signals, which are then processed by neural circuits in the retina and transmitted to the brain.
Color detection is the same in all humans. There may be minor variations but we all have a common blueprint unless there is something wrong with your color detection system such as color blindness. So unless you are broken, you're seeing the same color blue as everyone else with perhaps very tiny differences.
Apparently women see colours more intensely than men, too.
Yep, college is the new eighth grade.
The first time I thought of that question was around 40 years ago.
We still don't know the answer.