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Tag: "sensory" at biology news

Cracking the perception code

...ain may interpret the information it receives from sensory neurons using a code more complicated than scienti...in an animal's attention over time influence how a sensory signal is interpreted. Howard Hughes Medical Institute (HHMI) international research scholar Ranulf...

Researchers use brain scans to predict behavior

...sual perception not only depends on the quality of sensory signals but also on the variability of internal signals. Sapir A, d'Avossa G, McAvoy M, Shulman GL, Corbetta M. Brain signals for spatial attention predict performance in a motion discrimination task. Proceedings of the National Academy of the Scie...

Complex gene interactions account for autism risk

...ing the GABA system could overwhelm the brain with sensory information, leading to both the behavior and the pattern of cell damage that emerges in autism," said John Hussman, Ph.D., a study co-author and president of The Hussman Foundation, one of the groups that funded the study. The researchers examined ...

Grasshopper love songs give insight into sensory tuning

... of an attractive person knows, nature has evolved sensory systems to be exquisitely tuned to relevant input....nt coding hypothesis" was formulated, holding that sensory systems adjust to efficiently represent the complex, dynamic sounds, sights, and other sensory input...

Out of sight, out of mind? Not necessarily

... of the thalamus - the area of the brain where all sensory information is relayed -- can process color, the study provides evidence that there must be a pathway that goes through this region of the thalamus to the higher visual centers of the brain, Ro said. "In addition to providing direct evidence that un...

Women feel more pain than men, research shows

... of pain they experience, men tend to focus on the sensory aspects, for example concentrating on the physical sensations they experience. "Our research has shown that whilst the sensory-focused strategies used by men helped increase their pain threshold and tolerance of pain, it was unlikely to have any ben...

Experimental shingles vaccine proves effective in nationwide study

...not eliminated; rather, it retreats to clusters of sensory nerve cells usually located near the spinal cord, ..., the virus can reactivate, multiply in and damage sensory nerve cells to cause pain. It then migrates to the skin, causing the blistering rash of shingles. G...

Scientists use gene transfer technology and common virus to block neuropathic pain

...on this type of pain, which is caused by damage to sensory neurons that transmit pain, temperature and touch ...ic defect. Our goal is simply to deliver a gene to sensory nerve cells, so its product can be used to block transmission of pain signals from damaged nerves to...

Scientists use gene transfer technology and common virus to block neuropathic pain in animals

...on this type of pain, which is caused by damage to sensory neurons that transmit pain, temperature and touch ...ic defect. Our goal is simply to deliver a gene to sensory nerve cells, so its product can be used to block transmission of pain signals from damaged nerves to...

Scientists create digital bacteria to forge advances in biomedical research

...d. "Basically the only thing those cells have is a sensory system." But additional components that simulate other biological processes--cell division, for example--can also be introduced. And the software is available to other members of the research community for the asking. "The hope is that people will mo...

Gradient guides nerve growth down spinal cord

...amily of chemical signals that attracts developing sensory nerves up the spinal cord toward the brain serves ...als known as the Wnt proteins acted as a guide for sensory nerves. These nerves have a receptor on the tips of their growth cones, known as Frizzled3, which re...

Monkeys understand numbers across senses

...hy a monkey would need to represent numbers across sensory modalities," she said. "In the wild, a monkey migh... than the numerical commonalities extending across sensory modalities. "The results we obtained provide evidence that monkeys spontaneously detect a correspon...

New processing method reduces peanut allergenicity

... 70 percent without causing any adverse effects on sensory quality of the final product. "It is hoped that careful control of the process conditions may enable complete modification of allergenic proteins into non-allergenic and readily soluble proteins," says Yu. "This finding is good news to individuals w...

Flies on speed offer insight into the roles of dopamine in sleep and arousal

...bility to assign proper saliency (or relevance) to sensory stimuli. ...

After the yeast is gone bacteria continue to develop flavor of sparkling wine

...e place due to cell lysis which contributes to the sensory characteristics of Cava. The researchers isolated...position of wine, some changes which influence the sensory quality and consumer acceptability of the wine could be due to growth and lysis of bacteria," says R...

Aloe vera coating may prolong freshness, safety of fruits and vegetables

...which correspond to higher freshness, they say. A sensory panel (10 people) evaluated the quality of both the untreated and the gel-treated grapes by consuming some of the grapes. They found that the gel-treated grapes were generally superior in taste. The researchers believe that the gel works through a c...

Pinpointing the cause of a neurodegenerative disorder

...in-1 was responsible for causing the flies to lose sensory neurons, but the domain's function remained unknown. Then, a finding by co-author Hugo Bellen, an HHMI investigator at Baylor, set the researchers off in a more fruitful direction. Bellen's team was doing experiments designed to identify proteins tha...

Can our genes tell the story of our divergence?

... Nielsen et al. identified many genes involved in sensory perception, as well as spermatogenesis, but found the strongest evidence for positive selection in genes related to immune defense. Immunity genes, the authors explain, were likely targeted throughout mammalian evolution, while the perception and olf...

To translate touch, the brain can quickly rearrange its sense of the body

... showed that abnormal input into one of the body's sensory systems produced a rapid and profound change in another sensory system: The brain had changed the way it interpreted the signals from the sense of touch. These link...

Evolution of taste receptor may have shaped human sensitivity to toxic compounds

...the mechanisms governing the evolution of chemical sensory perception and on the role of diet as a selective force in human evolution. ...

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