Visual Impairment Current Events | Visual Impairment News | 3
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Surgeons' Performance Related To Visual-Spatial Ability (p 230)
A Canadian research letter in this week's issue of THE LANCET highlights how a surgeon's ability to execute a complex procedure is related to their degree of visual-spatial ability. Although some study participants were found to be more competent than others, those with low visual-spatial-ability scores improved their performance with repeated... view more... (2002-01-17)
Study Indicates How We Maintain Visual Details In Short Term Memory
Working memory (also known as short term memory) is our ability to keep a small amount of information active in our mind. view more (2009-02-23)
EYE DAMAGE AFTER SOLAR ECLIPSE NOT AS HIGH AS EXPECTED (p199)
Damage to the sight of those who looked directly at the sun during the eclipse of August 1999 may not be as bad as expected, reports a research letter in this week's issue of THE LANCET. Looking at the sun can cause burns to the retina. The UK Department of Health's advice at the time of the eclipse was to use an indirect method of looking at the... view more... (2001-01-18)
The benefits of imagining a cat called Buddy
A virtual pet could be an important element in the use of visual imagery to treat cancer. The method is described today, Thursday 5 July, in a poster by Dr Maureen Burke of the University of Queensland, Australia at the European Congress of Psychology, held at the Barbican Centre, London. The benefits of visual imagery in the treatment of disease... view more... (2001-06-28)
Ovary removal surgery elevates risk for dementia
Mayo Clinic researchers have found that ovariectomy, surgical removal of a woman's ovaries, raises her risk of developing dementia or cognitive impairment. Risk is especially increased if a woman has her ovaries removed at a young age. view more (2006-04-06)
Common genetic variants linked with progression to advanced forms of AMD
Variations of two common genes are associated with progression to more advanced forms of age-related macular degeneration, and factors such as smoking and being overweight greatly increase this risk. view more (2007-04-25)
New studies reveal that night-time acid reflux can impact sleep
According to results of a survey presented at the 72nd Annual Scientific Meeting of the American College of Gastroenterology, nighttime acid reflux, along with some of the less typical manifestations or symptoms of gastroesophageal reflux disease (GERD), is associated with significant sleep impairment. view more (2007-10-15)
New Study Indicates Radiologists Need Standards to Ensure Optimal Visual Accuracy
Radiologists, like professional pilots for example, depend on good vision as part of their occupation. However, radiologists unlike pilots are not required to undergo regular vision testing. view more (2009-06-10)
Study reveals we seek new targets during visual search, not during other visual behaviors
When we look at a scene in front of us, we need to focus on the important items and be able to ignore distracting elements. Studies have suggested that inhibition of return (in which our attention is less likely to return to objects we've already viewed) helps make visual search more efficient - when searching a scene to find an object, we have a... view more... (2009-04-15)
Alzheimer's pathology related to episodic memory in those without dementia
Alzheimer's pathology can appear in the brains of older men and women without dementia or mild cognitive impairment. view more (2006-06-27)
Reorganization of brain area for vision after stroke: May yield new treatments for brain injury
New evidence from a patient shows that the area of the brain that processes visual inputs can reorganize after an injury caused by stroke. view more (2007-09-05)
U of M researchers find cerebral malaria may be a major cause of brain injury in African children
Researchers at the University of Minnesota have found that cerebral malaria is related to long-term cognitive impairment in one of four child survivors. The research is published in the current issue of the journal Pediatrics. view more (2008-07-30)
Hard-wiring the fruit fly's visual system
Both vertebrate and fruit fly have so-called visual maps in the brain that represent the world they see. view more (2006-09-21)
Read My Lips: Using Multiple Senses in Speech Perception
When someone speaks to you, do you see what they are saying? We tend to think of speech as being something we hear, but recent studies suggest that we use a variety of senses for speech perception - that the brain treats speech as something we hear, see and even feel. view more (2009-02-12)
Scientists uncover why picture perception works
A team of scientists has solved a key mystery of visual perception. Why do pictures look the same when viewed from different angles? view more (2005-09-22)
New study shows those blinded by brain injury may still 'see'
Except in clumsy moments, we rarely knock over the box of cereal or glass of orange juice as we reach for our morning cup of coffee. New research at The University of Western Ontario has helped unlock the mystery of how our brain allows us to avoid these undesired objects. view more (2009-09-03)
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)
A New Method For Assessing Neurological Development Of Fetuses? (p 779)
A preliminary study in this week's issue of THE LANCET outlines how light-emitting technology could help in the future assessment of fetal neurological development. There have been only a few studies of visual-evoked response in human fetuses, and all have focused on general changes such as heart rate, body movements, and eye movements. Curtis... view more... (2002-09-04)
Brain's timing linked with timescales of the natural visual world
Researchers have long attempted to unravel the cryptic code used by the neurons of the brain to represent our visual world. By studying the way the brain rapidly and precisely encodes natural visual events that occur on a slower timescale, a team of Harvard bioengineers and brain scientists from the State University of New York have moved one step... view more... (2007-09-06)
Study suggests human visual system could make powerful computer
Since the idea of using DNA to create faster, smaller, and more powerful computers originated in 1994, scientists have been scrambling to develop successful ways to use genetic code for computation. view more (2008-07-24)
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