Feeling
dopey? (Or sneezy, grumpy, etc.) Have no idea what a “circadian eye” is?
Neither did it, but, yes, I am a sucker for brain studies – especially ones
that might help my traumatized brain improve.
So
I read about this study posted on the “New Scientist.” website: http://www.newscientist.com/article/dn25195-a-burst-of-orange-light-wakes-up-our-circadian-eye.html#.Ux7jYT9_vis?utm_source=NSNS&utm_medium=SOC&utm_campaign=twitter&cmpid=SOC|NSNS|2012-GLOBAL-twitter
Writer
Kat Arney reported about this study saying: “Light is a powerful wake-up call,
enhancing alertness and activity. Its effect is controlled by a group of
photoreceptor cells in the eyeball that make the light-sensing pigment
melanopsin. These cells, which work separately to the rods and cones needed for
vision, are thought to help reset animals' body clocks - or circadian rhythms.
Studies with people who are blind suggest this also happens in humans, although
the evidence isn't conclusive.
To
find out how melanopsin wakes up the brain, Gilles Vandewalle at the University
of Liege, Belgium, and his team gave 16 people a 10-minute blast of blue or
orange light while they performed a memory test in an fMRI scanner. They were
then blindfolded for 70 minutes, before being retested under a green light.
People
initially exposed to orange light had greater brain activity in several regions
related to alertness and cognition when they were retested, compared with those
pre-exposed to blue light.”
I
plan to start shopping for an orange light bulb this afternoon. If you know
where to buy one, text me (or is that too old-fashioned?).
Image
credit: <a
href='http://www.123rf.com/photo_10559923_festive-golden-lights.html'>cepn /
123RF Stock Photo</a>
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