sensory 2 4

Tag: "sensory" at biology news

Long-term changes in experience cause neurons to sprout new long-lasting connections

... The researchers induced a long-term change in the sensory experience of mice by trimming the animals' whiske...rtners. And while most of them retract, with novel sensory experience some populations of these new spines make connections that constitute beneficial new wiri...

Queensland scientists identify molecule that links both sides of the brain

... "This process is critical for the transmission of sensory information effectively throughout the adult brain." These findings are expected to have long-term implications for development of treatments for several forms of mental impairment and epilepsy. A QBI-led scientific paper outlining functions of t...

What's shaped like a pear and has 2 genomes? Check the pond

...hing, the organism will seek out food with diverse sensory systems. It can protect itself from radiation and other threats and also can fight back against competitors and predators. In short, versatility is its strength. Now, we can understand how this versatility works." It takes plenty of genes. In fac...

Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions

...hile suppressing nerve signal transmissions in the sensory pathways to make it easier to block out extraneous...e and suppression of the neuronal response in this sensory pathway of the brain. "Methylphenidate enhances noradrenergic transmission and suppresses mid- and l...

Chemical signaling helps regulate sensory map formation in the brain

...id. Similar systems are thought to regulate other sensory systems -- such as hearing and touch, as well as m...ting or repelling receptors on the growth cones of sensory or motor nerves. In this paper, Zou and colleagues reveal a new role for Wnts. They show that a gr...

UF scientists trace origin of shark's electric sense

...u think of this in the big picture of evolution of sensory systems, such as olfaction, hearing, vision and to...c program and used it to build yet another type of sensory system," Cohn said. UF and University of Louisiana researchers analyzed electroreceptordevelopment ...

Face perception is modulated by sexual orientation

...volved in representing the reward value of various sensory stimuli, including beautiful faces, as well as the reward value of abstract positive (for example, money) and negative (for example, punishment) entities. What could this mean for interpreting socially relevant information? Past work has shown that p...

Evolutionary shifts in olfactory sensitivities in fruit flies

...evolution can act on several different levels of a sensory system to create a supersensitive detection system...ontribute to our understanding of the evolution of sensory systems and their adaptation to new conditions and resources. ...

New gene reduces retinal degeneration in fruit flies

...t Biology, also has implications for understanding sensory perception in mammals. In teasing apart the molec..."These results have implications for understanding sensory signaling in mammals," says the study's senior author, Craig Montell, Ph.D., a professor in the biol...

It's in the genes: Study opens door to new treatment of the blues

...subordination by aggressive rodents and continuous sensory contact with the aggressors for 10 days. Afterward, the defeated mice avoided any social contact by spending most of their time in the corner of their cages opposite other mice, including those that had not been aggressive toward them. The defeated ...

Neuroscientists discover new cell type that may help brain maintain memories of smells

... with one of the millions of specialized olfactory sensory neurons in the nose. These sensory neurons then send signals to a brain region called the olfactory bulb, where the work of recognizing...

Watching the brain switch off 'self'

... as it shuts down introspection during a demanding sensory task. The researchers--led by Rafael Malach and ...d function actually shuts down during such intense sensory tasks. Thus, an "observer" function in the brain does not appear to play an active part of in the pr...

A new focus for the mechanism of nerve growth

...ortant because filopodia are thought to play a key sensory role in growth cone guidance -- suggesting actin filament recycling and signaling may be intimately related. The team is now investigating the implications of these findings for control of nerve growth, with particular interest in repair of spinal c...

Behavioral studies show UV contributes to marsupial color vision

...o re-examine theories on the evolution of this key sensory capacity. ...

How taste response is hard-wired into the brain

...t different taste behaviors. Thus, activity of the sensory neuron, rather than the receptor, is the arbiter of taste behavior. Our studies argue that animals distinguish different tastes by activation of dedicated neural circuits that dictate behavioral outputs," they wrote. ...

Stanford study of owls finds link in brain between sight and sound

...in clearly can't give equal weight to all incoming sensory information. It has to attend to what is important and ignore the rest. Two scientists at the Stanford University School of Medicine have taken a big step toward sorting out how the brain accomplishes this task. In the Jan. 19 issue of Nature, the r...

Both alcoholism and chronic smoking can damage the brain's prefrontal cortex

... Finally, says Clark, "this new arm will provide sensory feedback to make the arm feel like a person's own arm. Existing prosthetic arms are so hard to use, and feel so unnatural, that sometimes people just don't use them. They put them on the closet shelf." How the Funding Will Work The initial two-ye...

University of Utah to help build bionic arm

... Finally, says Clark, "this new arm will provide sensory feedback to make the arm feel like a person's own arm. Existing prosthetic arms are so hard to use, and feel so unnatural, that sometimes people just don't use them. They put them on the closet shelf." How the Funding Will Work The initial two-ye...

Sweet 'water taste' paradoxically predicts sweet taste inhibitors

...ing artificial sweeteners such as saccharin with a sensory experience in which plain water takes on a sweet taste has guided researchers to an increased understanding of how humans detect sweet taste. Reporting in an advance online publication in Nature, scientists from the Monell Chemical Senses Center d...

Great (taste) expectations: Study shows brain anticipates taste, shifts gears

...our senses, the human brain has ways of refracting sensory input in defiance of reality. This is seen, for e...ow how the brain can be rewired in anticipation of sensory input to respond in prescribed ways. Writing in the current issue (March 1, 2006) of the journal Br...

1 2 3 4 5 6 7