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Tag: "vision" at biology news

Polynesia explorers created worldwide web of scientific knowledge

... and they would bring back "their own ethnographic vision of the island peoples they wished to convert." Because of their continuous fieldwork, they claimed to be better informed than the scientists. In their conception of what it meant to know another culture, the missionaries "diminished the aesthetic a...

Quick -- what’s that smell?

...d work suggested that olfaction was different from vision and audition in lacking this fundamental property," notes senior author Alan Gelperin, PhD, a computational neuroscientist. "We now can use accumulated information about these other sensory systems to help us understand olfaction." Exactly how the...

Innovative method for creating a human cytomegalovirus vaccine outlined

...hour. These disabilities can include hearing loss, vision loss, mental disability, a lack of coordination, and seizures. According to the Centers for Disease Control and Prevention, CMV is as common a cause of serious disability as Down syndrome, fetal alcohol syndrome, or neural tube defects. Because of ...

Mice learn tasks that may help treat human psychiatric disorders

...syndrome, cancer, cerebral palsy, hearing loss and vision impairment. Although the number of children diagnosed with autism has increased dramatically over the past 12 years, the upward spiral may be due to better, more widespread understanding and diagnosis of the mental impairment, CDC experts said. Tri...

Bone marrow may restore cells lost in vision diseases

... cells, the rods and cones - our primary cells for vision - die. If we can regenerate the retinal pigment epithelium, it could make a big difference in our visual health." Scientists were able to detect that RPE cells indeed appear to be naturally replenished in the test animals by transplanting bone marro...

No-mow grass may be coming to your yard soon

... that never grows but is always green. Now, that vision of suburban bliss -- and more -- seems plausible as scientists have mapped a critical hormone signaling pathway that regulates the stature of plants. In addition to lawns that rarely require mowing, the finding could also enable the development of st...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...ted States. One in four people over age 65 suffers vision loss as a result of this condition, the most common diagnosis being macular degeneration. The chemistry at the core of the photoswitch is a molecule - an azobenzene compound - that changes its shape when illuminated by light of different colors. Kr...

New angiogenesis finding may help fight cancer growth

... inhibitor as the first drug that can restore some vision in the more severe ("wet") form of age-related macular degeneration (AMD). Wet AMD occurs when leaky blood vessels form in the retina. Along with a similar growth of new blood vessels in diabetes, it is the major cause of blindness in older adults. ...

Results with newer bladeless LASIK equivalent to standard microkeratome LASIK

... types six months post-surgery, using a variety of vision and eye health measurements. The study's findings ...the equivalent findings thus far in eye health and vision between the two types of LASIK, Dr. Patel slightly prefers bladeless LASIK due to its potential safe...

Thermal imaging shatters arousal gender gap myth

...ost people know it as the technology used in night vision goggles for military operations. Previously, sex researchers have measured arousal with instruments that require genital contact and manipulation. Binik focused thermographic cameras on his subjects' genitals while they watched a montage of...

Epstein-Barr virus might kick-start multiple sclerosis

...stood. Scientists think that MS--which can cause vision problems, muscle weakness, and difficulty with coordination and balance--is a result of the immune system attacking the body's own nervous system. Not everyone who is infected with Epstein-Barr develops MS, but the results of the new study, published...

Why Popeye only has eyes for spinach

...tating disease where sufferers slowly lose central vision making reading and most day-to-day activities virtually impossible. The main risk factors for the disease are age and heritance but it is also linked to controllable factors such as poor diet, smoking and obesity. "Having their macular pigment meas...

Five new technologies that promise to transform medicine

...nt and on extensions of those technologies. His vision for the future includes airport x-ray style device...on is the use of miniature telescopes that restore vision for patients with degenerative eye disease. The telescopes are powered by sunlight passing through t...

High levels of blindness in southern Sudan following years of war

...a. The two most common causes of blindness and low vision were cataract and trachoma, each accounting for over one-third of cases. Trachoma, which is caused by an infection, was responsible for a greater proportion of the cases of blindness than has been found in studies in other parts of rural Africa. I...

Slow brain waves play key role in coordinating complex activity

...s they need to avoid, such as centers of language, vision or motor activity. The goal of the UC Berkeley-UCSF Intracranial Project is to use high-gamma waves to produce a finer map of the brain to guide neurosurgeons during brain surgery and potentially to use these same high frequency oscillations to cont...

New system could drastically reduce herbicide use

...he machine from weather and gives it shade for its vision system." Although the robot is equipped with ul...chine, "we're going to try and use only the camera vision for navigation," said Jeon, "which makes it a lot more difficult." The robot stands a little more...

Artificial cornea offers better results for infants, some blind patients

...int to a new option for dramatically improving the vision of a group of people for whom traditional cornea t...children from six weeks to 13 years old, restoring vision and putting an end to long cycles of eye operations that dog many patients who have needed a cornea ...

Stroke symptoms common among general population

...akness on one side of the body; 4.6 percent sudden vision loss in one or both eyes; 2.7 percent sudden loss of the ability to understand what others were saying; and 3.8 percent suddenly could not express themselves in speech or writing. African Americans and those with lower incomes, less education, poo...

Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration

...t it shouldn't be considered the same as restoring vision in humans. The next wave of research will focus on characterizing the mechanisms that generate photoreceptor precursors from stem cells. Swaroop believes the research has potential for developing therapies for people with retinal and macular degener...

NHGRI aims to make DNA sequencing faster, more cost effective

...e to common, complex diseases. Ultimately, NHGRI's vision is to cut the cost of whole-genome sequencing to $1,000 or less, which will enable the sequencing of an individual's genome during routine medical care. The ability to sequence an individual genome cost-effectively could enable health care profession...

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