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Tag: "eyes" at biology news

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

...e shown that monkeys sometimes turn their head and eyes when they see another individual turn and look to the side, the study by Deaner and Platt provides the first evidence that monkeys reflexively and internally shift their attention where another individual is looking. The subjects also provided other ...

Defect in gene causes 'neuralgic amyotrophy'

...ents also have particular facial features, such as eyes that are somewhat closer together, a fold in the upper eyelid that covers the inside corner of the eye, and sometimes a cleft palate. HNA is a relatively rare disorder: the disease appears in some 200 families worldwide. There is also a non-heredit...

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

...ationship between certain components of vertebrate eyes and those of the more primitive light-sensing syst...mage-forming vision, thanks to the fact that their eyes all express crystallins and form a lens; however, the vertebrates' nearest invertebrate relatives, s...

A vaccine to kill tapeworm

...ough the body and lodge themselves in muscles, the eyes and the brain, causing a disease called cysticercosis. Its symptoms vary depending on the location and number of what are called cysticerci. Many people have no serious symptoms, but some go blind, become confused, suffer difficulty with balance or ...

Retina adapts to seek the unexpected, ignore the commonplace

...gy in Harvard's Faculty of Arts and Sciences. "Our eyes report the visual world to the brain, but not very faithfully. Instead, the retina creates a cartoonist's sketch of the visual scene, highlighting key features while suppressing the less interesting regions." These findings provide evidence that the...

Single gene is genetic switch for fly sexual behavior

... development of complex anatomical structures like eyes or limbs, by influencing sometimes hundreds of other genes, Dickson notes. "I don't see any good reason why innate behaviors, which are a consequence of how the nervous system is built, should be any different. Indeed, I think that is what our work ...

Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery

...earby console, fingers on stirrup-like holders and eyes fixed on lenses for sharp magnified images of the surgical site. Focus is adjusted via foot pedals. While laparoscopy allows manipulation of instruments up, down and side-to-side, surgery with the da Vinci allows more natural wrist movement. The ro...

Screen all at risk for HIV, plus pregnant women

...earby console, fingers on stirrup-like holders and eyes fixed on lenses for sharp magnified images of the surgical site. Focus is adjusted via foot pedals. While laparoscopy allows manipulation of instruments up, down and side-to-side, surgery with the da Vinci allows more natural wrist movement. The ro...

FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk

...earby console, fingers on stirrup-like holders and eyes fixed on lenses for sharp magnified images of the surgical site. Focus is adjusted via foot pedals. While laparoscopy allows manipulation of instruments up, down and side-to-side, surgery with the da Vinci allows more natural wrist movement. The ro...

NASA satellite data provides rapid analysis of Amazon deforestation

...t this fragile ecosystem with the help of powerful eyes above - satellites. This technology continues to advance and a new study shows that NASA satellite images can allow scientists to more quickly and accurately assess deforestation in the Amazon. Researchers from the University of Maryland-College Pa...

Color perception is not in the eye of the beholder: It's in the brain

...composition and distribution of color cones in the eyes of living humans with varied retinal structure. Each subject was asked to tune the color of a disk of light to produce a pure yellow light that was neither reddish yellow nor greenish yellow. Everyone selected nearly the same wavelength of yellow, ...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...ental than space, because one can just close one's eyes and relive memories, going back in time; or prospectively go forward in time to predict something, without actually changing your position in space." Understanding the machinery of interval timing is profoundly difficult because it is "amodal," said...

Gene therapy works in mice to prevent blindness that strikes boys

...man RS1 gene to the sub-retinal space of the right eyes of 15-day-old male mice, which, like boys with the...s later, researchers looked at the interior of the eyes with a laser ophthalmoscope and found cyst formation was clearly evident in the untreated eyes, but ...

Scientists must offer solutions for conserving tropical forests in a rapidly changing world

...ical forest landscapes are changing rapidly in the eyes of scientists working on tropical monitoring plots around the globe, while human populations and their economic activities grow. Old-growth forests become agricultural lands, degraded land is abandoned, urbanization intensifies, and the populations o...

Fruit fly research set to revolutionize study of birth defects

... Babies have bent limbs, tufts of hair and bulging eyes and the fruit flies have bent legs (and wings), tufts of bristles and rough eyes." While identifying this gene array is significant in its own right, the successful use of fruit flies in this kind of study is a revelation to the researchers who vi...

Clocking in Pillow Time without the Pillow

...s quickly, the mind can't learn new words, and the eyes can't focus on the road. You also gain things: a bad mood and increased risk for diabetes, high blood pressure, and heart problems. Indeed, the effects of sleep deprivation can be so serious that some sleep scientists liken lifetime sleep debt to a h...

Noise And Delays Explain Why Some Genes Oscillate In Activity

...s quickly, the mind can't learn new words, and the eyes can't focus on the road. You also gain things: a bad mood and increased risk for diabetes, high blood pressure, and heart problems. Indeed, the effects of sleep deprivation can be so serious that some sleep scientists liken lifetime sleep debt to a h...

Making medicine 'smarter'

...ancer -- to provide doctors with the more critical eyes of a computer. Despite the incredible potential of...e sheer volume of images can be daunting for human eyes to evaluate. Meyer-Baese is developing computer software to mimic the way a radiologist analyzes a...

Odd energy mechanism in bacteria analyzed

...her, it uses retinal, the same protein used by the eyes of animals and humans to detect light, and serves as a "proton pump" to energize the cell membrane. Proteorhodopsin was only discovered in 2000, but until now, it had not been found in a living organism. It's still not totally clear, Giovannoni said,...

Clawed frog helps Fanconi anemia research make leaps

...tion process is off and running under the watchful eyes of the researchers. "That's just the beginning of what we want to do with these extracts to study how the Fanconi proteins work," Hoatlin said. "You can control the extract with chemicals or by removing proteins with specific antibodies. It's a ver...

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