re GR Title

[Hartwin Alfred Gebhardt]

> At 01:10 AM 5/1/96 +0200, Hartwin Alfred Gebhardt wrote:
> >A rainbow is caused, as I understand it, by the interaction of light 
> >and the medium it passes through. Also by our brain's tendency to 
> >'spontaneously' categorize a spectrum of colour into seven distinct 
> >colours. 
> 
> Hmmm, I'm not positive about this, but I think that color categorization is
> at least in part learned.  Different cultures have different "anchor points"
> along the spectrum which they use as the base colors.  
> 
> Al

Yes, you're right (I think). That's why I put the '...' around 
'spontaneously'. My point was that the colour differences  we see in a 
rainbow are, as it were, superimposed by us. As Jeffrey Reid sez, the 
whole spectrum is there, but we 'see' only seven. As to how much of this 
is learned, as opposed to / facillitated via inherent neural structures, is 
something cognitive psychologists are arguing about.

hg
hag at iafrica.com