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Author Topic: Why do humans and other animals see in colour?  (Read 1390 times)

Offline Ray

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Why do humans and other animals see in colour?
« on: 23/02/2011 10:40:01 »
The physiology of the colour sense is quite clear and well documented but my question is why did this ability evolve in the first place? Different frequencies in the visual electromagnetic spectrum are presented to our conscious mind as different colours. A simple equation for frequency is 1/time so in essence when we see colour we are actually experiencing the inverse of time.
If our colour sense is actually also a time sense does this have any bearing on our current understanding of the time 'dimension'?? 


 

Offline rosy

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Why do humans and other animals see in colour?
« Reply #1 on: 23/02/2011 11:17:06 »
We're not really perceiving the "frequency", except insofar as that's related to the photon energy. The ability of our eyes to detect particular colours is based on the energy of the photons breaking down the rhodopsin (visual purple) in the rod cells, and the photopsins in the cone cells.. different energies cause reactions in different molecules.

So our colour sense isn't in any meaningful way related to our sense of time.
 

Offline Don_1

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Why do humans and other animals see in colour?
« Reply #2 on: 23/02/2011 13:21:16 »
Colour!!!!!! Time!!!!!!

I don't think so.

We (Humans) did not evolve the ability to see in colour, that evolved 1000s of millions of years before humans. Insects have been able to see in colour almost since they first evolved.

You can thank plants for our ability to see in colour, not time.
 

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Why do humans and other animals see in colour?
« Reply #2 on: 23/02/2011 13:21:16 »

 

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