News tagged with sense of smell
Researchers find gene critical to sense of smell in fruit fly
(Medical Xpress) -- 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 ...
Jan 19, 2012 |
3 / 5 (1) |
0
|
Carbon dioxide affecting fish brains: study
Rising human carbon dioxide emissions may be affecting the brains and central nervous systems of sea fish, with serious consequences for their survival, according to new research.
Jan 16, 2012 |
4.1 / 5 (15) |
15
Did a good sense of smell give us an evolutionary advantage over Neanderthals?
(PhysOrg.com) -- Our sense of smell may have been as important as language in helping to give us, modern humans, an evolutionary advantage over other human relatives such as the Neanderthals, scientists report ...
Other Sciences / Archaeology & Fossils
Dec 13, 2011 |
4 / 5 (1) |
2
|
Neuroscientists find genetic trigger that makes stem cells differentiate in nose epithelia
University of California, Berkeley, neuroscientists have discovered a genetic trigger that makes the nose renew its smell sensors, providing hope for new therapies for people who have lost their sense of smell ...
Medicine & Health / Neuroscience
Dec 07, 2011 |
not rated yet |
0
|
Early sign of Alzheimer's reversed in lab
One of the earliest known impairments caused by Alzheimer's disease - loss of sense of smell – can be restored by removing a plaque-forming protein in a mouse model of the disease, a study led by a Case Western Reserve ...
Medicine & Health / Neuroscience
Nov 30, 2011 |
4.5 / 5 (8) |
2
|
Researcher finds elderly lose ability to distinguish between odors
Scientists studying how the sense of smell changes as people age, found that olfactory sensory neurons in those 60 and over showed an unexpected response to odor that made it more difficult to distinguish specific smells, ...
Medicine & Health / Neuroscience
Nov 10, 2011 |
5 / 5 (1) |
0
|
Alzheimer's protein kills nerve cells in nose
A protein linked to Alzheimer's disease kills nerve cells that detect odors, according to an animal study in the September 28 issue of The Journal of Neuroscience. The findings shed light on why people with Alzheimer's diseas ...
Medicine & Health / Neuroscience
Sep 27, 2011 |
not rated yet |
0
|
Scientists discover an organizing principle for our sense of smell
The fact that certain smells cause us pleasure or disgust would seem to be a matter of personal taste. But new research at the Weizmann Institute shows that odors can be rated on a scale of pleasantness, and this turns out ...
Medicine & Health / Neuroscience
Sep 26, 2011 |
5 / 5 (1) |
3
|
Smells may help birds find their homes, avoid inbreeding
Birds may have a more highly developed sense of smell than researchers previously thought, contend scholars who have found that penguins may use smell to determine if they are related to a potential mate.
Sep 21, 2011 |
4 / 5 (1) |
0
|
Not senseless -- watching the brain relearning the sense of smell
Neural and biochemical processes that are affected by the loss of olfactory sensory perception are now being explored. These studies provide insight into the effects of the loss of smell on corresponding relevant ...
Medicine & Health / Neuroscience
Jun 29, 2011 |
5 / 5 (1) |
0
The smell of danger: Rodent olfaction and the chemistry of instinct
The mechanics of instinctive behavior are mysterious. Even something as simple as the question of how a mouse can use its powerful sense of smell to detect and evade predators, including species it has never met before, has ...
Jun 28, 2011 |
not rated yet |
1
|
Ocean acidification leaves clownfish deaf to predators
(PhysOrg.com) -- Since the Industrial Revolution, over half of all the CO2 produced by burning fossil fuels has been absorbed by the ocean, making pH drop faster than any time in the last 650,000 years and ...
Jun 01, 2011 |
5 / 5 (1) |
3
|
Stinky feet could pave the way for better ways to stop mosquitoes
With Memorial Day weekend approaching and temperatures across the nation steadily increase to summertime highs, thoughts turn to picnics, ballgames -- and bug bites. Now, a new way of stopping mosquitoes could ...
May 27, 2011 |
4.3 / 5 (3) |
2
|
Large brains in mammals first evolved for better sense of smell
Paleontologists have often wondered why mammals—including humans—evolved to have larger brains than other animals. A team of paleontologists now believe that large brains may have developed in mammals ...
Other Sciences / Archaeology & Fossils
May 19, 2011 |
4.7 / 5 (3) |
0
|
What rat breath can teach us about food preference, sense of smell and taste
(Medical Xpress) -- Would your favorite dinner taste the same if you could not smell it? Does a sense of smell require a sense of taste? Katz, an associate professor of psychology and neuroscience, set out to find some answers.
Medicine & Health / Neuroscience
May 02, 2011 |
not rated yet |
0
|
Olfaction
Olfaction (also known as olfactics or smell) refers to the sense of smell. This sense is mediated by specialized sensory cells of the nasal cavity of vertebrates, and, by analogy, sensory cells of the antennae of invertebrates. For air-breathing animals, the olfactory system detects volatile or, in the case of the accessory olfactory system, fluid-phase chemicals. For water-dwelling organisms, e.g., fish or crustaceans, the chemicals are present in the surrounding aqueous medium. Olfaction, along with taste, is a form of chemoreception. The chemicals themselves which activate the olfactory system, generally at very low concentrations, are called odors.
For more information about Olfaction, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
