Jim, we have a perception exhibit that depends on the retinal cones that are sensitive to one of the primary colors becoming fatigued, resulting in the eye becoming less sensitive to that color. You should be able to use this same effect to determine which primary color a subject is looking at.
P O Johnson
The Science Place
Dallas, Texas
pjohnson@scienceplace.org
Original Message:
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From: Jim Green JMGreen@SISNA.COM
Date: Thu, 03 Jan 2002 11:48:15 -0700
To: PHYS-L@lists.nau.edu
Subject: Colors
Is there any data which would indicate that when a group of us look at
the sky that we all have the same sensory experience? Yes we all have
agreed to call the sky "blue" but can it possibly be that when I see "blue"
that I have the same sensory experience as when you see a fig leaf and you
say "green" -- or a Camaro and say "red"?