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Latest Sensory neuron Stories

Neurons And The Sense Of Touch
2012-10-26 18:26:58

Michael Harper for redOrbit.com — Your Universe Online The sense of touch is perhaps the most basic, most elementary of the senses. It´s how many living things learn, move and explore. Yet, according to W. Daniel Tracey, PhD, there´s still plenty left to be discovered when it comes to the sense of touch. “On a molecular level, touch is the most poorly understood of the senses,” said Dr. Tracey who is an associate professor of anesthesiology at Duke University...

2012-07-27 10:25:24

New understanding of how the brain processes information from inner ear offers hope for sufferers of vertigo If you have ever looked over the edge of a cliff and felt dizzy, you understand the challenges faced by people who suffer from symptoms of vestibular dysfunction such as vertigo and dizziness. There are over 70 million of them in North America. For people with vestibular loss, performing basic daily living activities that we take for granted (e.g. dressing, eating, getting in and...

2011-12-22 15:33:07

Compared to our other senses, scientists don't know much about how our skin is wired for the sensation of touch. Now, research reported in the December 23rd issue of the journal Cell, a Cell Press publication, provides the first picture of how specialized neurons feel light touches, like a brush of movement or a vibration, are organized in hairy skin. Looking at these neurons in the hairy skin of mice, the researchers observed remarkably orderly patterns, suggesting that each type of hair...

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2011-04-15 08:31:09

By Danielle J. Whittaker, BEACON Center for the Study of Evolution in Action, Michigan State University Researchers are decoding the patterns that connect different types of nerve cells Though the brain may seem impossibly complex, it can be understood as a network, much like computer chips or the Internet. A new analysis in the journal PLoS ONE has described the workings of a worm's nervous system as patterns involving the connections among nerve cells with different functions. Unlike the...

2010-10-18 21:45:25

'Sister' mitral cells may broadcast 2 distinct channels of information on odors to the cortex A team co-led by neuroscientists at Cold Spring Harbor Laboratory (CSHL) has shed light -- literally -- on circuitry underlying the olfactory system in mammals, giving us a new view of how that system may pull off some of its most amazing feats. It has long been known from behavioral experiments that rodents, for instance, can tell the difference between two quite similar odors in a single sniff. But...

2010-10-18 13:35:19

Harvard University neurobiologists have created mice that can "smell" light, providing a potent new tool that could help researchers better understand the neural basis of olfaction. The work, described this week in the journal Nature Neuroscience, has implications for the future study of smell and of complex perception systems that do not lend themselves to easy study with traditional methods. "It makes intuitive sense to use odors to study smell," says Venkatesh N. Murthy, professor of...

2010-08-26 12:30:22

Two new studies reveal that the commonly used insect repellents DEET and citronellal each work through a dual stimulation of insect sensory systems. The research findings, published by Cell Press on August 26 in the journals Neuron and Current Biology, enhance our understanding of how insects respond to repellents and may lead to the discovery of improved compounds for controlling insect-borne disease. Insect pests pose a major threat to humans across the world. In addition to spreading...

2010-04-21 06:34:21

What does the smell of a good meal mean to you? It may mean more than you think. Specific odors that represent food or indicate danger are capable of altering an animal's lifespan and physiological profile by activating a small number of highly specialized sensory neurons, researchers at the University of Michigan, University of Houston, and Baylor College of Medicine have shown in a study publishing next week in the online, open-access journal PLoS Biology. Recent research in model organisms...

2009-12-28 13:26:20

The vomeronasal organ (VNO) is an odor detection system that mediates many pheromone-sensitive behaviors. Vomeronasal sensory neurons (VSNs), located in the VNO, are the initial site of interaction with odors and pheromones. How an individual VSN transduces chemical signals into electrical signals, however, has been a mystery. In the January 2010 issue of the Journal of General Physiology (www.jgp.org), researchers from the University of Vermont show that a Ca 2+ -activated chloride current...

2009-12-17 15:18:21

All-optical technique determines when neurons inhibit or excite one another Scientists at Harvard University have used light and genetic trickery to trace out neurons' ability to excite or inhibit one another, literally shedding new light on the question of how neurons interact with one another in live animals. The work is described in the current issue of the journal Nature Methods. It builds upon scientists' understanding of the neural circuitry of the nematode worm Caenorhabditis elegans,...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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