Colour perception 'affected by lack of sleep'
Published: 10 June 2010
Colours may not be seen properly by people who have not had sufficient sleep.
People who do not have enough sleep may find their perceptions of colour are affected, new research has found.Scientists at the University of Houston in Texas found that sleep helps refresh the mind and therefore enables people to see colours in their true light.
Researchers found that people who were excessively tired saw the colour grey as having a greenish tint, which was then rectified after a good night's sleep.
Bhavin Sheth, assistant professor of electrical and computer engineering, said: "This is among the first studies to investigate the effects of sleep on perception.
"Our findings suggest that wakefulness causes colour classification to drift away from neutrality."
The results were presented at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies in Texas.
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