Tag Archives: vision

Watch Your Step: How Vision Leads Locomotion

AUSTIN, Texas — Using new technologies to track how vision guides foot placement, researchers at The University of Texas at Austin come one step closer in determining what is going on in the brain while we walk, paving the way for better treatment for mobility impairments — strokes, aging and Parkinson’s — and technology development — prosthetics and robots. (more…)

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Study reveals vision’s role in vowel perception

In a study based at Brown University, researchers found that the motion and configuration of a speaker’s lips are key components of the information people gather when distinguishing vowels in speech.

PROVIDENCE, R.I. [Brown University] — For all talkers, except perhaps the very best ventriloquists, the production of speech is accompanied by visible facial movements. Because speech is more than just sound, researchers set out to ascertain the exact visual information people seek when distinguishing vowel sounds. (more…)

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Everyone has different ‘bad spots’ in their vision

The ability to distinguish objects in peripheral vision varies significantly between individuals, finds new research from UCL, Paris Descartes University and Dartmouth College, USA. For example, some people are better at spotting things above their centre of vision while others are better at spotting things off to the right. (more…)

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Major cause of blindness linked to calcium deposits in the eye

Microscopic spheres of calcium phosphate have been linked to the development of age-related macular degeneration (AMD), a major cause of blindness, by UCL-led research.

AMD affects 1 in 5 people over 75, causing their vision to slowly deteriorate, but the cause of the most common form of the disease remains a mystery.* The ability to spot the disease early and reliably halt its progression would improve the lives of millions, but this is simply not possible with current knowledge and techniques. (more…)

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God as a Drug: The Rise of American Megachurches

American megachurches use stagecraft, sensory pageantry, charismatic leadership and an upbeat, unchallenging vision of Christianity to provide their congregants with a powerful emotional religious experience, according to research from the University of Washington.

“The megachurches movement is one of the leading indicators of how American Christians exercise their faith these days, so therefore they should be understood,” said James Wellman, associate professor of American religion at the University of Washington. “And our study shows they’re doing a pretty effective job for their members, based on self-reports, contrary to public opinion that tends to pass them off as a type of consumerist religion. In fact, their members speak eloquently of their spiritual growth.” (more…)

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Photoreceptor Transplant Restores Vision in Mice

Scientists from the UCL Institute of Ophthalmology have shown for the first time that transplanting light-sensitive photoreceptors into the eyes of visually impaired mice can restore their vision.

The research, published in Nature, suggests that transplanting photoreceptors – light-sensitive nerve cells that line the back of the eye – could form the basis of a new treatment to restore sight in people with degenerative eye diseases. (more…)

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Vision Improves Modestly in Patients after Human Embryonic Stem Cells Transplants

Researchers at UCLA’s Jules Stein Eye Institute and colleagues who successfully transplanted specialized retinal cells derived from human embryonic stem cells into the eyes of two legally blind patients report that the transplants appear safe and that both patients have experienced modest improvement in their vision.

The preliminary findings, published online Jan. 23 in the journal The Lancet, represent a milestone in the therapeutic use of stem cells and may pave the way for a new therapy to treat eye diseases, the researchers said. Because this is the first time physicians have applied the power of regenerative medicine to eye disease, the clinical trials are being watched closely by scientists, stem-cell therapy advocates and the public. (more…)

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Optimizing Eyesight: R&D Collaboration Focuses on New System for Measuring and Improving Human Vision

With research and development assistance from the Georgia Tech Research Institute (GTRI) and seed funding from the Georgia Research Alliance (GRA), an Atlanta-based company is developing what it hopes will be the next-generation instrument for optimizing eyesight for the hundreds of millions of people who wear glasses or contacts – or who are candidates for corrective surgery.

To be used by optometrists and ophthalmologists, the instrument – known as the VisionOptimizer – is intended to provide more accurate vision measurements, along with a more patient-friendly and engaging vision test.  The company believes its system will facilitate the custom-manufacturing of spectacles and contact lenses that provide better eyesight and improved wearing comfort compared to conventional prescriptions. (more…)

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