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Tag: "sensory" at biology news

Research finds music training 'tunes' human auditory system

...mic and reciprocal one and tells us that our basic sensory circuitry is more malleable than we previously thought." Overall, the findings assist in unfolding new lines of inquiry. The researchers now are looking to find ways to "train" the brain to better encode sound ?work that potentially has far-reach...

Wired for sound: How the brain senses visual illusions

...y related to the perceptual experiences induced by sensory stimuli, using an electrophysiological or EEG reco... the strength of integration between the different sensory cortices may differ between individuals, or even vary over time. "It suggests that there are consis...

Penn study on olfactory nerve cells shows why we smell better when we sniff

Unlike most of our sensory systems that detect only one type of stimuli, our ...d a reaction in the olfactory neurons, the primary sensory neurons in the nose that perceive odors. Researchers then puffed a solution without the chemical st...

Homing pigeons get their bearings from their beaks

...particles of maghemite and magnetite were found in sensory dendrites² of the skin lining the upper beak of homing pigeons. This research project found that these dendrites are arranged in a complex three-dimensional pattern with different spatial orientation designed to analyze the three components of the m...

Smoking ban dramatically reduces air pollution in Irish pubs

...ovements in cough and phlegm production. Moreover, sensory irritant symptoms improved in all subgroups after the ban, although the smoking workers benefited less. In an editorial on the research in the same issue of the journal, Fiona Godfrey, B.A., L.L.M. (Master of Laws), European Union Policy Advisor a...

Protein discovery targets antibiotic-resistant bacteria

...ter’s student Chunhua He. The group is studying sensory pathways used by bacteria that enter our bodies an... the gastro-intestinal tract. “If we can block the sensory pathway, then the bacteria can’t adapt to that change in their environment, and won’t be able to inf...

Is there a pilot in the insect?

...crashing to the ground? Today it is known that the sensory motor prowess of these flying miniatures depends on the nervous system, made up of between one hundred thousand and one million neurons. When an insect, bird or pilot flies over land, the image of the ground below sweeps from front to back across th...

Carnegie Mellon University research shows how sensory-deprived brain compensates

...nal a predator's presence. These stiff hairs relay sensory input to the brain, which shapes neuronal activity...e, the results should help shape future studies of sensory deprivation that results from stroke or traumatic brain injury, say the authors. "Our findings ...

Neural bottleneck found that thwarts multi-tasking

...een the two tasks was not specific to a particular sensory or motor modality, but instead originated at a central information-processing bottleneck. The results revealed that the central bottleneck was caused by the inability of the lateral frontal and prefrontal cortex, and also the superior frontal cort...

Conceptualizing a cyborg

...erve signals into movements of a prosthetic, while sensory stimuli, such as temperature or pressure provides ...signals conducted down the nerve and stimulate the sensory signals back through the axons. In another study, Smith and colleagues showed that these stretch...

Making mice with enhanced color vision

...n that the brain can adapt far more rapidly to new sensory information than anticipated. This work, appeari...it to spread quickly. "If you gave mice a new sensory input at the front end, could their brains learn to make use of the extra data at the back end?" ask...

Do you hear what i see?

... McGill University. "The textbook-standard view of sensory systems as isolated from one another is no longer ...ly with the sound. "This finding suggests that sensory integration, which is so fundamental to complex mental activity, takes place at very early processin...

Biologically inspired sensors can augment sonar, vision system in submarines

...ing preyed upon, fish rely on a row of specialized sensory organs along the sides of their bodies, called the lateral line. Now, a research team led by Chang Liu at the University of Illinois at Urbana-Champaign has built an artificial lateral line that can provide the same functions in underwater vehicles. ...

Killing the messenger RNA -- But which one?

...milarly, in the brain, excess uric acid can damage sensory neurons and cause deafness. Working with a strain of transgenic mice unable to perform RNA editing and normal control mice, the researchers found that a complete lack of the edited version of the microRNA in question had the effect of driving prod...

How does your brain tell time?

...ime," he added. "Every time the brain processes a sensory event, such as a sound or flash of light, it triggers a cascade of reactions between brain cells and their connections. Each reaction leaves a signature that enables the brain-cell network to encode time." The UCLA team used a computer model to...

Tarantula venom and chili peppers target same pain sensor

...iggering pain by activating a specific receptor on sensory nerves. The research provides new tools to understand how these pain- and heat-sensing neurons work, and to help develop drugs that ease persistent pain, the scientists report. Their finding, based on studies of mice cells in culture and live mice, i...

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

...on capture in vision." They are part of a complex sensory system that delivers visual signals to the brain. Photoreceptors consist of rods and cones, highly specialized cells that capture light and convert it into chemical signals that travel through the inner retina and optic nerve and on to the brain wher...

Robotic whiskers can sense three-dimensional environment

...bending of the whisker activates many thousands of sensory receptors located in the follicle at the whisker base. The receptors, in turn, send neural signals to the brain, where a three-dimensional image is presumably generated. Hartmann and Solomon showed that their robotic whiskers could extract informa...

Mysterious 'neural noise' actually primes brain for peak performance

...ons are responding to the light, sounds, and other sensory information from the world around us. But if we want to do something, such as jump over a stream, we need to extract data that is not inherently part of that information. We need to process all the variables we see, including how wide the stream appe...

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

...ur 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 appear in the October 10th issue of the journal Current Biology, published by Cell Press. When we speak, our ability to effect...

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