Quote (cletus7seven @ Jan 23 2010 11:04pm)
okay. this may be hard to explain but ill try to do my best. my friend thinks that each person sees color differently but we all learned it the same. So basically she thinks that i might see green. but to her its red. but we both learned it as the color red. we just cant tell that we see it differently because we learned it the same. i completely disagree with her. i think that everyone sees the same colors.
is she right or wrong?
she is correct.
think of colour-blind, some can be red green colour blind but still can tell the difference by just the intensity of the colour.
think of other species of animals, who have a different spectra of vision. how does infra-red looks like to a snake?
and the most convincing evidence is, different human have a minor different spectra of vision. This is due to the sensitivity of your retinal cone cells, you have 3 different types of molecules that degrade under certain wavelengths, the ratio and amount of these molecule is slightly different in each person. And age is also a factor, some old people cannot see a higher frequency of wavelength (which is between the purple and uv).