News tagged with light perception
Psychologists increase understanding of how the brain perceives shades of gray
Vision is amazing because it seems so mundane. Peoples' eyes, nerves and brains translate light into electrochemical signals and then into an experience of the world around them. A close look at the physics of just the first ...
Medicine & Health / Psychology & Psychiatry
Nov 10, 2011 |
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After 55 years, surgery restores sight
After being hit in the eye by a stone, a detached retina left a man blind in his right eye. Despite surgery to remove a cataract when the man was 23, which temporarily restored light perception, the patient was completely ...
Jun 17, 2011 |
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NIST 'Vision Science Facility' aims for lighting revolution
Light-emitting diodes, or LEDs, have become popular with backpackers and cyclists who mount them on headbands for a reliable, hands-free source of illumination. Now, a new lab at the National Institute of Standards and Technology ...
Sep 29, 2010 |
3.5 / 5 (2) |
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A road of no return: Team implements the first '1-way roads' for light
Light readily bounces off obstacles in its path. Some of these reflections are captured by our eyes, thus participating in the visual perception of the objects around us. In contrast to this usual behavior ...
Oct 08, 2009 |
4.7 / 5 (21) |
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Squid 'sight': Not just through eyes
It's hard to miss the huge eye of a squid. But now it appears that certain squids can detect light through an organ other than their eyes as well.
Jun 01, 2009 |
4.1 / 5 (8) |
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Erectile dysfunction treatments do not appear to damage vision over 6 months
Two medications used to treat erectile dysfunction in men (tadalafil and sildenafil) do not appear to have visual side effects when taken daily for six months, despite concerns about eye-related complications, according to ...
Apr 13, 2009 |
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A human failure, seen at face value
(PhysOrg.com) -- Humans excel at recognizing faces, but how we do this has been an abiding mystery in neuroscience and psychology. In an effort to explain our success in this area, researchers are taking a ...
Medicine & Health / Neuroscience
Mar 13, 2009 |
3.9 / 5 (7) |
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