Scientists solve mystery of the eye
(PhysOrg.com) -- Scientists have a good overall understanding of human vision: when light enters our eyes, it is focused by the lens and strikes the retina in the back of the eye. The light causes some of ...
Nov 17, 2011 |
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Evolutionary bestseller in image processing
The eye is not just a lens that takes pictures and converts them into electrical signals. As with all vertebrates, nerve cells in the human eye separate an image into different image channels once it has been ...
Medicine & Health / Neuroscience
Nov 10, 2010 |
5 / 5 (7) |
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Aiming to cure deafness, Stanford scientists first to create functional inner-ear cells
Deep inside the ear, specialized cells called hair cells detect vibrations in the air and translate them into sound. Ten years ago, Stefan Heller, PhD, professor of otolaryngology at the Stanford University ...
Medicine & Health / Medical research
May 13, 2010 |
4.8 / 5 (13) |
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Chickens 'one-up' humans in ability to see color
(PhysOrg.com) -- Researchers at Washington University School of Medicine in St. Louis have peered deep into the eye of the chicken and found a masterpiece of biological design.
Feb 16, 2010 |
4.7 / 5 (22) |
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Dogs, maybe not, but old genes can learn new tricks
A popular view among evolutionary biologists that fundamental genes do not acquire new functions was challenged this week by a new study in the Proceedings of the National Academy of Sciences.
May 11, 2009 |
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Expression of infrared fluorescence engineered in mammals
(PhysOrg.com) -- Researchers at the University of California, San Diego - led by 2008 Nobel-Prize winner Roger Tsien, PhD - have shown that bacterial proteins called phytochromes can be engineered into infrared-fluorescent ...
May 07, 2009 |
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Protein plays role in helping plants see light
Plants do not have eyes or legs, yet they are able to "see" and move toward and away from light. This ability, called phototropism, is controlled by a series of molecular-level signals between proteins inside and between ...
Oct 12, 2011 |
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Finding is a feather in the cap for researchers studying birds' big, powerful eyes
Say what you will about bird brains, but our feathered friends sure have us -- and all the other animals on the planet -- beat in the vision department, and that has a bit to do with how their brains develop.
Jun 23, 2011 |
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Researchers report progress using iPS cells to reverse blindness
Researchers have used cutting-edge stem cell technology to correct a genetic defect present in a rare blinding disorder, another step on a promising path that may one day lead to therapies to reverse blindness ...
Jun 15, 2011 |
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Light-sensing receptor plays role in temperature sensation: study
A light-sensing receptor that's packed inside the eye's photoreceptor cells has an altogether surprising role in cells elsewhere in the body, Johns Hopkins scientists have discovered. Using fruit flies, they showed that this ...
Mar 10, 2011 |
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Nna proteins play role in catastrophic neuron death in mice, flies -- and perhaps people
A team of researchers, led by scientists at the University of California, San Diego, have identified a key player in the dramatic loss of neurons in mice and fly models, a discovery that could help illuminate the role of ...
Medicine & Health / Neuroscience
Jun 24, 2010 |
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Scientists shed new light on how retina's hardware is used in color vision
Biologists at New York University and the University of Wurzburg have identified, in greater detail, how the retina's cellular hardware is used in color preference. The findings, published in the latest issue of the Proceedings of ...
Medicine & Health / Medical research
Mar 08, 2010 |
4.3 / 5 (6) |
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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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Mutated gene in zebrafish sheds light on blindness in humans
Among zebrafish, the eyes have it. Inside them is a mosaic of light-sensitive cells whose structure and functions are nearly identical to those of humans. There, biologists at The Florida State University ...
Medicine & Health / Medical research
Mar 24, 2009 |
5 / 5 (1) |
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Plant growth without light control: Synthetic photoreceptor stimulates germination and development
Plants are dependent on the sun. Sunlight does not only supply them with energy, but also controls their development steps. So-called photoreceptors activate the processes of germination, leaf development, ...
May 16, 2012 |
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