"New" colours possible?
zhil at online.no
Tue Nov 20 14:31:07 EST 2001
"C.J.L. Wolf" <C.J.L.Wolf at ncl.ac.uk> skrev i melding
news:Pine.SOL.4.21.0111201638270.27227-100000 at aidan.ncl.ac.uk...
> > Possibly, but the loss would be substantial.
> What form might this substantial loss take, and how do you know it would
> be substantial? What does this mean for people with 2 cone types (normal
> red-green colourblindness...).
It would be a fuzzyness, compared with normal vision.
Think of it this way if the neocortex is not expanded:
The neurons would have to be rearranged among the cones (3/4 of the old nummerical
> Think back to the neural circuitry required. Somehow the developing
> brain's got to sense that there's a whole new type of cone present, and
> make different connections to it than it would to other cones. It's pretty
> straightforward to think up scenarios whereby a new cone type with a
> different pigment arises from spontaneous mutations, but this is only a
> small fraction of the story.
A genetic mutation might occur, but it would be by Darwininan selection.
What possible good could such a mutation give, any advantages.
I had the same 'visionary' view before I stared to study neuroscience.
Now I'm of the opinion that a system were electronics will be engineered and integrated
into each other, and were you can switch systems (from normal to infrared) by a mental
This is already under study by several instiutes.
BTW, I'm not into the 'circle', so I can not confirm how far the research has gone; for
now they'll try to replicate normal vision.
My view is that the best advantage would be to use genetic engineered vectors were the
neurons will 'adapt' toward electronic 'interfaces'.
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