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Physiology & Medicine / Re: Is your perception of colours the same as mine?
« on: 16/12/2019 21:06:57 »
There are different variants of the genes which allow color perception.
- Some of them don't work at all, resulting in reduced range of color sensitivity (eg dichromats can only clearly distinguish two bands of color)
- Some of these gene variants function equally well, but have a slightly different spectral sensitivity from other variants, so these people would see a slightly different mix of colors.
- It is genetically possible for women to have two different variants of the red cone cells, allowing them to distinguish colors that look the same to most of the population (including all men). At least one example of a tetrachromat has been documented.
So Nigella can (potentially) see some things that Nigel can't - maybe that's why she likes red dresses?
But that's nothing compared to some shrimp which can see 10 or more color bands (plus polarization).
So one person may see Colours while another sees different Colors; it's all in the eye of the beholder
- This was one of Webster's more successful spelling reforms; but aker is still spelt acre, even in the USA.
See: https://en.wikipedia.org/wiki/Tetrachromacy#Humans
- Some of them don't work at all, resulting in reduced range of color sensitivity (eg dichromats can only clearly distinguish two bands of color)
- Some of these gene variants function equally well, but have a slightly different spectral sensitivity from other variants, so these people would see a slightly different mix of colors.
- It is genetically possible for women to have two different variants of the red cone cells, allowing them to distinguish colors that look the same to most of the population (including all men). At least one example of a tetrachromat has been documented.
So Nigella can (potentially) see some things that Nigel can't - maybe that's why she likes red dresses?
But that's nothing compared to some shrimp which can see 10 or more color bands (plus polarization).
So one person may see Colours while another sees different Colors; it's all in the eye of the beholder
- This was one of Webster's more successful spelling reforms; but aker is still spelt acre, even in the USA.
See: https://en.wikipedia.org/wiki/Tetrachromacy#Humans
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