A Good Night's Sleep Really Does Effect Your View Of The World
The American Academy of Sleep Medicine today announced the results of a study on the effects of sleep on color perception. It turns out that it's not rose-colored glasses you need at all; it's just a good night's sleep.
The study, presented today at the SLEEP 2010 annual meeting of the Associated Professional Sleep Societies LLC, is among the first to be conducted on sleep and its relationship to perception. It was conducted by principal investigator and lead author Bhavin Sheth, assistant professor of electrical and computer engineering at the University of Houston in Texas.
Five subjects viewed a full-field of homogenous gray with either a slightly greenish or slightly reddish hue. As the views varied each time the test was administered during the course of a day, participants were asked each time whether what they saw was either greener or redder than their internal perception of a neutral gray. The subjects were introduced to their last view just before they went to sleep.
The next morning, after an average of 7.7 hours of sleep, the participants were again given a slightly red or slightly green hue on a gray stimulus, but the subjects did not perceive the reddish or greenish hues at all. Instead, they identified the colors as gray.
“This is among the first studies to investigate the effects of sleep on perception,” said principal investigator and lead author Bhavin Sheth, assistant professor of electrical and computer engineering at the University of Houston in Texas. “Our findings suggest that wakefulness causes color classification to drift away from neutrality, and sleep restores color classification.
The best time to get out and see the world then, would be first thing in the morning after a solid night's sleep.
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