RE: Color vision in gorillas

["Paul D. DeRocco" <pderocco@xxxxxxxxxxxxx>]

They probably put them in a small dark booth or box with a display that can
show different color patches, and that has touch sensors. They show a bunch
of colors, all of which are the same except for one which is very different,
and train the animal to touch the different color, rewarding it with an M&M
or something. They then gradually reduce the differences in color until the
animal is no longer able to pick the different color. They've been doing
tests like that for decades.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com

> From: Preston Earle
>
> "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!

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