On Wed, 31 Oct 2001 02:41:32 GMT, bbruner at uclink4.berkeley.edu (Bob)
wrote:
>On Tue, 30 Oct 2001 22:08:44 +0100, "Urs Enke" <urs.enke at web.de>
>wrote:
>>>For some years now I've wondered
>>-- whether the (red-green-blue-mixable) colours we know are all there are in
>>this universe, and if not,
>>-- whether it might be possible to neurologically change the visual cortex
>>(or whatever necessary) to create the sensation of other colours, and
>>-- whether there has been any research suggesting that other animals are
>>actually seeing different colours than we do.
>>>>Just to add a brief comment to all the good stuff already posted...
>Apparently two different "red" receptors are known in humans, with
>slightly different wavelength responses. So, genetically determined,
>different people see color differently. (I can probably find a
>reference for that, if someone wants to look it up.)
>Not at all. You siimply have determined that different people
have slightly different mechanisms to see color. It says
nothing whatsoever about whether they see the colors
differently or not.