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Latest Olfactory system Stories

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2012-07-12 13:28:12

John Neumann for redOrbit.com - Your Universe Online Every kid knows that we taste with our tongues, however those in the know, understand that this is a very rudimentary viewpoint. When it comes to flavor, the tongue is very basic. Most of our experience of flavor comes from our olfactory system: our nose and sinuses. Professor Barry Smith, director of the Centre for the Study of the Senses at the University of London, explains, “Not only is it not just about your tongue. Very...

Odor Perception In Terrestrial Hermit Crabs Increased By Humidity
2012-07-05 09:13:27

Olfaction in land crabs is still in an early transitional stage between life in water and on land Max Planck scientists have found out that the olfactory system in hermit crabs is still underdeveloped in comparison to that of vinegar flies. While flies have a very sensitive sense of smell and are able to identify various odor molecules in the air, crabs recognize only a few odors, such as the smell of organic acids, amines, aldehydes, or seawater. Humidity significantly enhanced electrical...

2012-05-24 20:12:28

Research from Karolinska Institutet shows that the human olfactory bulb - a structure in the brain that processes sensory input from the nose - differs from that of other mammals in that no new neurons are formed in this area after birth. The discovery, which is published in the scientific journal Neuron, is based on the age-determination of the cells using the carbon-14 method, and might explain why the human sense of smell is normally much worse than that of other animals. "I've never...

2012-03-22 09:36:29

People born without a sense of smell experience higher social insecurity and increased risk for depression, according to a study published Mar. 21 in the open access journal PLoS ONE. The authors of the study, led by Ilona Croy of the University of Dresden Medical School in Germany, investigated 32 individuals born without a sense of smell, known as isolated congenital anosmia. They found that the non-smellers did not have significant deviations from the norm in terms of many daily...

Brain Handles Odors In A Different Way
2012-03-22 05:44:48

Researchers from the Stowers institute for Medical Research have traced individual odor molecules in the brain to create a new model of how our sense of smell works. While once thought to cluster related smells, researchers have know discovered that the brain reacts to smells in a broader sense. Previous research has shown that the brain handles the senses in a very orderly way. Things that we touch were thought to be mapped together in the somatosensory cortex, things that we heard...

2012-03-14 13:44:04

How are 100 billion cells created, each with specific duties? The human brain is evidence that nature can achieve this. Researchers at Linköping University in Sweden have now taken a step closer to solving this mystery. "Knowledge about the mechanisms that diversify neurons and keep them diverse is necessary in order to cultivate and replace nerve cells in the future," says Mattias Alenius, Assistant Professor of Neuroscience, who has published his research breakthrough...

41681_web
2012-03-14 10:32:54

How are 100 billion cells created, each with specific duties? The human brain is evidence that nature can achieve this. Researchers at Linköping University in Sweden have now taken a step closer to solving this mystery. "Knowledge about the mechanisms that diversify neurons and keep them diverse is necessary in order to cultivate and replace nerve cells in the future," says Mattias Alenius, Assistant Professor of Neuroscience, who has published his research breakthrough in the...

2012-02-21 06:06:12

(Ivanhoe Newswire) -- Recent research has shown that Alzheimer's drugs, which are in clinical trials still, have adverse side effects. The drugs are designed to prevent BACE1, the enzyme Robert Vassar originally discovered that promotes the development of clumps of plaque associated with Alzheimer's.  BACE1 cuts up and releases proteins that form the plaque, making those who developed the drug believe that by blocking the enzyme the development of Alzheimer's disease might slow down....

2012-02-20 12:56:23

Drugs may act like bad electrician, messing up wiring in brain and nervous system Alzheimer's disease drugs now being tested in clinical trials may have potentially adverse side effects, according to new Northwestern Medicine research. A study with mice suggests the drugs could act like a bad electrician, causing neurons to be miswired and interfering with their ability to send messages to the brain. The findings, from the scientist whose original research led to the drug development,...

2012-01-20 11:06:41

Fruit flies don't have noses, but a huge part of their brains is dedicated to processing smells. Flies probably rely on the sense of smell more than any other sense for essential activities such as finding mates and avoiding danger.  UW-Madison researchers have discovered that a gene called distal-less is critical to the fly's ability to receive, process and respond to smells. As reported in the current issue of the Proceedings of the National Academy of Sciences, the scientists...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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