Re: Color vision in gorillas

[Arthur Entlich <artistic-1@xxxxxxx>]

It all comes down to bananas. ;-)

Actually, I would guess it wasn't that difficult, but more time 
consuming.  If you create a scenario where the only distinguishing 
characteristic between two objects is their color, and you provide 
different rewards/punishments based upon that difference, you can 
monitor if the animal (or human) can consistently select the "correct" 
object.  Be making the colors closer and closer in value and hue, 
eventually there would be a point where errors would creep in or an 
inability to select the "correct" object would occur.

Assuming other variables, like lighting type and levels, were accounted 
for, if you did this with the basic cone color sensitivities, (red green 
and blue) in a number of values, you could interpolate and theorize the 
ranges of ability to distinguish between colors.

I also assume that using certain anatomical comparisons of eye 
structures, lenses, pupil size, retinal density of rods and cones, etc. 
certain generalizations could be made within reason. Obviously, working 
with human subjects would simplify the process.

Art

Preston Earle wrote:

> "Arthur Entlich" <artistic-1@shaw.ca> wrote: "Most higher primates
> (including humans) can see somewhere in the area of  2.3 million
> discernible colors."
> 
> 
> Boy, I'd love to see how they ran that experiment!
> 
> Preston Earle
> PEarle@triad.rr.com
> 


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