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Tag: "sight" at biology news

Devising Nano Vision for an Optical Microscope

...all realm of molecules and atoms may not be out of sight for the venerable optical microscope, after all. In fact, research at the National Institute of Standards and Technology (NIST) suggests that a hybrid version of the optical microscope might be able to image and measure features smaller than 10 nanom...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...na, it may open up new opportunities for restoring sight in patients with the end stages of retinitis pigmentosa." ...

Ophthalmologists implant five patients with artificial silicon retina microchip

...na, it may open up new opportunities for restoring sight in patients with the end stages of retinitis pigmentosa." ...

Artifical cornea lets woman blind 20 years see

...oprosthesis, into one of her eyes -- restoring her sight in that eye and ultimately helping her regain much of her independence. Phifer is one of several hundred patients nationwide who have received such artificial corneas, which have revolutionized the treatment and care of patients like her. "I was bli...

Six previously blind patients detect light, motion, identify objects with retinal prostheses

...ts in the study have been people with little or no sight perception due to the degenerative eye disease retinitis pigmentosa (RP). Ultimately, however, the device is likely to be used for the millions of people suffering from age-related macular degeneration, or AMD, as well. In fact, notes Humayun, there ...

Insight into our sight: A new view on the evolution of the eye lens

...on and Radboud University in The Netherlands. Our sight relies on the ability of our eye to form a clear, focused image on the retina. The critical component in focusing is the eye lens, and the physical properties that underlie the transparency of the lens, as well as its ability to precisely refract lig...

Grasshopper love songs give insight into sensory tuning

...d by a baby's howl or who have been riveted by the sight of an attractive person knows, nature has evolved sensory systems to be exquisitely tuned to relevant input. A major question in neurobiology is how neurons tune the strength of their interconnections to optimally respond to such inputs. Neuronal ci...

On a wing and a prayer - Alaska researchers seek clues to bird flu

...chcock's "The Birds" made many of us uneasy at the sight of amassing gulls years ago, today public health officials around the world are beginning to cast an equally uneasy eye toward migratory birds, especially in Alaska, following recent outbreaks of avian influenza in Southeast Asia and, last week, in S...

Gene therapy works in mice to prevent blindness that strikes boys

...mic molecular genetics. "These children lose their sight gradually, often with devastating results. What happens is the retina actually begins to split in the middle, causing loss of central vision - that's the vision that you need to be able to read or walk around." Scientists say the gene transfer metho...

Biotechnology's newest chemical tool

... other relates to taste, touch, sound, hearing and sight that tell us about the external world. CYBERHAND includes sensors for tension, force, joint angle, end stroke and contact in the final prototype. This prototype uses Longitudinal IntraFascicular Electrodes (LIFEs) to connect the hand to the nervous ...

Finding the mind's eye

...plain what part of the brain is at work in turning sight into understanding. Tse, who is currently on sabbatical in Regensburg, Germany as the recipient of the prestigious Friedrich Wilhelm Bessel Research Award, conducted experiments using the phenomenon of "masking." Masking occurs when "a quickly flas...

UCLA imaging study of children with autism finds broken mirror neuron system

...mal brain activity in areas of the brain involving sight and facial movements indicated that the children with autism remained on task during the fMRI scans. ...

Unique equine cataract surgery offered on routine basis

...l surgery on a routine basis, which could save the sight of thousands of horses. Professor Derek Knotten...ving consistently successful in restoring complete sight to patients without post-operative symptoms. Based at the University's Large Animal Hospital at L...

Warbling whales speak a language all their own

...logy and first author of the paper. With limited sight and sense of smell in water, marine mammals are more dependent on sound--which travels four times faster in water than air--to communicate. For six months each year, all male humpback whales in a population sing the same song during mating season. Th...

Australian first to save sight

...orneal Donation Service (LCDS), will help save the sight of hundreds of Victorians a year by extending the ...ansplant in July 2005, said the improvement in her sight was remarkable, enabling her to enjoy life to the full. "I can even see the freckles on my grandson...

Losing sleep undoes the rejuvenating effects new learning has on the brain

...e hippocampus compared with animals that could use sight and smell. That made sense, because the task that relied on memory involved the hippocampus, while the other did not. However, the sleep-restricted rats that had to rely on memory to find the goal showed no increased neurogenesis, unlike their reste...

UF scientists restore sight to chickens with blinding disease

... have delivered a gene through an eggshell to give sight to a type of chicken normally born blind. The fin...treatment long-lasting -- scientists have restored sight and slowed degeneration, but the retinal cells still degenerate. But Semple-Rowland thinks the time...

Researchers show how brain decodes complex smells

...g multiple components, whether the input is smell, sight or sound. Shea suggested that probing the olfactory system could help scientists better understand, for example, how the various biological and neurological components underlying perception formed and evolved. ...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...luenced cortical neurons that are activated by the sight of actions being performed by mouth, hand, or foot...t of this mirror system was also responsive to the sight of these actions being performed, suggesting that a particular area of the brain can respond similar...

Stanford discovery may help predict when toxoplasma can be deadly

...ganism to their fetuses, potentially resulting in sight and hearing problems as well as learning disabilities. The new findings have implications for determining how to treat these and other infected people: More aggressive therapy may be warranted if a strain that contains the proteins that increase ...

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