Visual System Current Events | Visual System News | 5
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JHU researcher discovers brain cells have 'memory'
As we look at the world around us, images flicker into our brains like so many disparate pixels on a computer screen that change every time our eyes move, which is several times a second. Yet we don't perceive the world as a constantly flashing computer display. view more (2009-04-03)
Penn researchers find treatment for MS also reduces vision loss in MS patients
According to a study that appears in the April 17 issue of Neurology, researchers at the University of Pennsylvania School of Medicine have found that natalizumab (TYSABRI®) - a drug that slows disability and reduces relapse rates in patients with multiple sclerosis (MS) - also reduces vision loss in patients with relapsing MS. view more (2007-04-17)
Blink, and the brain misses it
We would immediately notice if the outside world suddenly went dark every few seconds. But we rarely become aware of our blinks, even though they cause a similar reduction in the amount of light entering the eye. So why are we not aware of the frequent mini-blackouts caused by blinks? view more (2005-07-26)
Multiple genes permit closely related fish species to mix and match their color vision
Vision, like other biological attributes, is shaped by evolution through environmental pressures and demands, and even closely-related species that are in other ways very similar might respond to their particular environments by interpreting the visual world slightly differently, using photoreceptors that are attuned to particular wavelengths of... view more... (2005-10-11)
Watch out for queasy skiers on the slopes
IF SKIING leaves you feeling a bit green around the gills and wishing you`d never left the comfort of the chalet, then you may be suffering from ski sickness. "It`s basically a form of motion sickness," says Rudolf Haeusler, an ear surgeon at the University of Berne in Switzerland. Like seasickness... view more... (2002-02-06)
Stealth camouflage at night
Cuttlefish are well-known masters of disguise who use highly developed camouflage tactics to blend in almost instantaneously with their surroundings. view more (2007-03-12)
Tibetan monks yield clues to brain's regulation of attention
University of Queensland researchers have teamed up with Tibetan Buddhist monks to uncover clues to how meditation can affect perception. view more (2005-06-07)
New research finds people and pigeons see eye to eye
Pigeons and humans use similar visual cues to identify objects, a finding that could have promising implications in the development of novel technologies, according to new research conducted by a University of New Hampshire professor. view more (2007-02-21)
MIT: New insights into perception
In the classic waterfall illusion, if you stare at the downward motion of a waterfall for some period of time, stationary objects - such as rocks - appear to drift upward. view more (2009-04-10)
Eye researchers develop new 3-D monitor vision test for children
A new random-dot stereotest using a 3D display and infrared oculography has been found to objectively assess stereopsis in children older than three years according to an article published in the November 2006 issue of Investigative Ophthalmology & Visual Science (IOVS). view more (2006-10-26)
Everything in its place: Researchers identify brain cells used to categorize images
Socks in the sock drawer, shirts in the shirt drawer, the time-honored lessons of helping organize one's clothes learned in youth. But what parts of the brain are used to encode such categories as socks, shirts or any other item, and how does such learning take place? view more (2006-08-28)
Flight simulators for pilots offer treatment for chronic dizziness
Vision and motion simulators similar to those used by fighter pilots and astronauts can provide relief from the symptoms of chronic dizziness, researchers at Hammersmith Hospitals NHS Trust and Imperial College London report in the Journal of Neurology*. view more (2004-10-07)
More than meets the eye
Ever watch a jittery video made with a hand-held camera that made you almost ill? With our eyes constantly darting back and forth and our body hardly ever holding still, that is exactly what our brain is faced with. Yet despite the shaky video stream, we usually perceive our environment as perfectly stable. view more (2006-10-09)
Scientists unmask brain's hidden potential
Previous research has found that when vision is lost, a person's senses of touch and hearing become enhanced. But exactly how this happens has been unclear. view more (2008-08-27)
New device may improve vision and mobility for people with tunnel vision
Scientists at Schepens Eye Research Institute, an affiliate of Harvard Medical School, say a visual aid they invented promises to improve the visual abilities of people with tunnel vision. view more (2006-08-30)
Visual learning study challenges common belief on attention
A visual learning study by scientists at The University of Texas Health Science Center at Houston indicates that viewers can learn a great deal about objects in their field of vision even without paying attention. The findings will appear in the April 14 print issue of the journal Current Biology. view more (2009-03-26)
Duke team explains a longtime visual puzzler in new way
A team of neuroscientists at Duke University Medical Center has suggested an entirely new way to explain a puzzling visual phenomenon called the flash-lag effect. view more (2008-10-14)
MIT retinal implant could help restore some vision
MIT engineers have designed a retinal implant for people who have lost their vision from retinitis pigmentosa or age-related macular degeneration, two of the leading causes of blindness. view more (2009-09-24)
LASIK for older adults
A new University of Illinois at Chicago study appearing in the online edition of the journal Ophthalmology reports on the safety, efficacy and predictability of laser eye surgery (laser in situ keratomileusis or LASIK) in patients 40-69 years old. view more (2007-04-19)
Computer poetry pushes the genre envelope
What happens to poetry in the Digital Age? In one of the first academic works in the field, Swedish researcher Maria Engberg has studied how the ability of the computer to combine words, images, movement, and sounds is impacting both writing and reading. view more (2007-09-13)
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