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Tag: "perception" at biology news

Bats get the munchies too!

...avour? explains researcher Francisco Sanchez, “The perception of sweetness versus bitterness may vary according the type of sugar and the amount of ethanol consumed. The combination of sucrose and ethanol may just have tasted better than either ethanol and fructose, or ethanol and glucose?...

Deconstructing brain wiring, one neuron at a time

...these neural circuits with such brain functions as perception and behavior. But these circuits are difficult to unravel because dozens of different neuronal types are entangled within a precisely connected network, and even neighboring neurons of the same type differ in connectivity and function. So, resear...

Study finds surfing safer than soccer

While public perception may frame surfing as a dangerous sport, new research begs to differ. In the first study of its kind, researchers have computed the rate of injury among competitive surfers and found they are less prone to harm than collegiate soccer or basketball pla...

Mimicking how the brain recognizes street scenes

...brain disorder that involves distortions in visual perception is schizophrenia, but nobody understands the neurobiological basis for those distortions. "The versatility of the biological model turns computer vision from a trick into something really useful," said co-author Stanley Bileschi, a post-doctoral ...

Bisexual fruit flies show new role for neurochemical

...said. "We think we'll be able to learn a lot about perception and development from figuring out exactly what's happening in these flies. "It's amazing how many biomedical breakthroughs have come from crazy directions." ...

Wired for sound: How the brain senses visual illusions

...new insight into neural mechanisms by which visual perception can be altered by concurrent auditory events, will...ond flash. "Our results provide evidence that perception of the illusory second flash is based on a very rapid and dynamic interplay between the auditory and...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

...cuits but also has a behavioral component. "The perception of smell is quite complex," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and often conjuring up vivid memories. So we wanted to know how the brain decodes the presence of these ch...

Common algae helps illustrate mammalian brain electrical circuitry

...cuits but also has a behavioral component. "The perception of smell is quite complex," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and often conjuring up vivid memories. So we wanted to know how the brain decodes the presence of these ch...

Scientists unlock secret of what makes plants flower

... became clear that something was communicating the perception of changes in day length in leaves to the shoot apex, and causing flowering, scientists have been trying to work out exactly how this mechanism works. "Over the past couple of years several labs made exciting discoveries all pointing to the FT ge...

Studies yield insight into the numerical brain

...ocessing just above the forehead--activates during perception of both abstract quantities and numerical symbols. In one paper, Manuela Piazza and colleagues showed that regions of the parietal lobe activate in response to numbers, either when they are presented as patterns of dots or as Arabic numerals. In ...

Making mice with enhanced color vision

...y issues related to the subjective nature of color perception -- everyone who has had a discussion as to whether the "green" they see is the same as the "green" their friend sees can attest to this -- the researchers only tested whether the mice could discriminate among the lights. "Each photoreceptor abso...

Ultrasound upgrade produces images that work like 3-D movies

...n of the scanner to produce an even more realistic perception of depth. Paired images seem to pop out of the scr... of the face and skull and improve surgeons' depth perception during ultrasound-guided medical procedures, including tumor biopsies and robot-assisted surgeries d...

Genes and genius: Researchers confirm association between gene and intelligence

...ination, logical and sequential reasoning, spatial perception and abstract problem solving skills. When people had more than one positive variation in the gene, the improvements in performance IQ were cumulative. The study's findings are available online in Behavioral Genetics and will appear in an upcoming pri...

LSD treatment for alcoholism gets new look

...ts subsequent popularity as a street drug, and the perception of it as a threat to public safety, triggered a worldwide ban in the late 1960s--including its use in medical experiments. However, the ban on its use in medical experiments appears to be lifting, Dyck noted. A few groups of researchers in the U.S., ...

Sensory feedback during speech: The brain attunes to more than just sound

Using robotics to manipulate the brain's perception of jaw movement while words are spoken, researchers have deepened our understanding of the importance of non-auditory sensory cues in the brain's control of speech. The findings are reported by Sazzad Nasir and David Ostry of McGill University and ap...

New dyslexia theory blames 'noise'

...is often redundant and dyslexics get away with the perception deficit," Ziegler said in an e-mail. "In noise, ho... preventive training for children with weak speech perception in noise in kindergarten or early primary grades, saying they are at greater risk for developing dys...

Bitter taste identifies poisons in foods

...ll Chemical Senses Center report that bitter taste perception of vegetables is influenced by an interaction betw...that variations in the hTAS2R38 gene affect bitter perception specifically of foods containing glucosinolate toxins. Together, the findings provide a complete pi...

Paying attention sets off symphony of cell synchronization

...erates. The mystery of how attention improves the perception of incoming sensory stimulation has been a long-time concern of scientists. One hypothesis is that when you pay attention neurons produce stronger brain activity, as if the stimulus itself was stronger. That would mean that paying attention might mak...

For super-obese patients, duodenal switch beats gastric bypass

...o keep the weight off longer." "There has been a perception amongst bariatric surgeons that the duodenal switch might provide better weight loss than gastric bypass in super-obese individuals," said Prachand. Several studies have demonstrated higher rates of weight-loss failure and weight regain following ga...

Results with newer bladeless LASIK equivalent to standard microkeratome LASIK

...criminate bright objects from dark objects), or in perception of stray light or glare, such as the glare from oncoming headlights," says Sanjay Patel, M.D., Mayo Clinic ophthalmologist and study investigator. Given the equivalent findings thus far in eye health and vision between the two types of LASIK, Dr. ...

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