I would caution against color experimentation on oneself if you make a substantial portion of your living from your eyes. .. there is strong indication that if you apply enough filtration to your vision for long enough that your frontal cortex will retain a strong chemical pathway for any perceptual adaptation created during the experiment.  It fades over time but has been seen in test subjects for several weeks.  Far better to experiment on unsuspecting college students who want a few extra points on their grade ;-) Cheers Daniel Perfect logic is meaningless without perfect perspective. Daniel Westcott daniel@westcott.us -------- Original message -------- From: Bob Frost <bobfrost@btopenworld.com> Date: 07/27/2013 12:41 PM (GMT-07:00) To: Roger Breton <graxx@videotron.ca>,colorsync-users@lists.apple.com Subject: Re: Color Perception: How does coffee affect color perception? You could do some experiments on yourself by wearing a pair of yellow tinted glasses with one lens removed (or replaced by a blue tinted lens). How does the brain adapt to that? Is one eye dominant? Or does the brain average the results out? From my reading on the subject, it seems that color vision is far more variable than some would have us believe. _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list      (Colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/daniel%40westcott.us This email sent to daniel@westcott.us