Open Question: How can we prove that we all see the same thing? Like how do I know when I see red, you also see "red"?
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M$2 Answers
To consider different perceptions, read this http://www.flickr.com/groups/56447474@N00/
"The real voyage of discovery lies not in seeking new
landscapes but in seeing with new eyes."
— Marcel Proust
Hence, the landscape may be the same, the perception varies.
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
Light-sensing and color-vision are a more primary process. Independently of the connections to the brain, the human photoreceptors do have the same photopigments. These molecules have a very characteristic light spectra (range of wavelengths that excite the molecule).
So in the eye ("visually"), red is always red and it elicites certain responses that other colors don't (and vice-versa).
But in the end, when the information gets to the brain, things are less universal and there could be thousands of factors that could make a person picture blue in their heads when they see red in their eyes.
I recommend the site WebVision for all vision-related matters. It's major contributors are PhD students from the fields of Ophtalmology and Vision Research. I used to be one of them.
Good one!
However, it is difficult to have "different eyes" since the photoreceptors of the human retina (and its photopigments -molecules that sense light) are basically the same. However, there could be variations in the number of these cells and this could lead to variations on light perception for different colours (different wavelenghts).
But in the end, we all have been set up using the same standards.