News tagged with melanopsin
Bright lights, not-so-big pupils
A team of Johns Hopkins neuroscientists has worked out how some newly discovered light sensors in the eye detect light and communicate with the brain. The report appears online this week in Nature.
Medicine & Health / Medical research
Dec 31, 2008 |
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Search results for melanopsin
Brain control? Shining light on pupil constriction
(PhysOrg.com) -- You’ve seen it on television: A doctor shines a bright light into an unconscious patient’s eye to check for brain death. If the pupil constricts, the brain is OK, because in mammals, ...
Nov 02, 2011 |
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Blue light enables genes to turn on
(Medical Xpress) -- With a combination of synthetic biology and optogenetics, researchers from the Swiss Federal Institute for Technology published a paper in Science outlining their new technique which enable ...
Jun 24, 2011 |
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Melanopsin looks on the bright side of life
Better known as the light sensor that sets the body's biological clock, melanopsin also plays an important role in vision: Via its messengers-so-called melanopsin-expressing retinal ganglion cells, or mRGCs-it ...
Dec 07, 2010 |
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More than meets the eye to staying awake, alert
Think twice before falling asleep alongside the glare of your computer and TV screens: exposure to dim light from ordinary room lights, computer screens and other electronic devices late at night may be interfering with our ...
May 13, 2010 |
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Study explains why light worsens migraine headaches
Ask anyone who suffers from migraine headaches what they do when they're having an attack, and you're likely to hear "go into a dark room." And although it's long been known that light makes migraines worse, the reason why ...
Medicine & Health / Neuroscience
Jan 10, 2010 |
4.9 / 5 (11) |
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An 'eye catching' vision discovery
Nearly all species have some ability to detect light. At least three types of cells in the retina allow us to see images or distinguish between night and day. Now, researchers at the Johns Hopkins School of ...
Medicine & Health / Neuroscience
Jul 26, 2009 |
4.4 / 5 (11) |
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Seasonal affective disorder may be linked to genetic mutation, study suggests
With the days shortening toward winter, many people will begin to experience the winter blahs. For some, the effect can be devastating.
Nov 03, 2008 |
5 / 5 (1) |
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Gene therapy restores vision to mice with retinal degeneration
Massachusetts General Hospital (MGH) researchers have used gene therapy to restore useful vision to mice with degeneration of the light-sensing retinal rods and cones, a common cause of human blindness. Their report, appearing ...
Medicine & Health / Medical research
Oct 16, 2008 |
5 / 5 (3) |
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Perfect Vision But Blind To Light
Mammals have two types of light-sensitive detectors in the retina. Known as rod and cone cells, they are both necessary to picture their environment. However, researchers at the Salk Institute for Biological ...
Biology /
Jun 11, 2008 |
4.7 / 5 (20) |
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Does missing gene point to nocturnal existence for early mammals?
A gene that makes cells in the eye receptive to light is missing in humans, researchers have discovered. They say that whereas some animals like birds, fish and amphibians have two versions of this photoreceptor, mammals, ...
Biology /
Oct 11, 2006 |
4.5 / 5 (6) |
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List of search results for melanopsin
