Olfaction

Understanding The Role Of Olfaction In Taste

Ramifications for food formulation as fundamental research on food smells finds olfaction is uniquely a "dual" sense, in that the brain perceives the same smell molecule differently if it arrives through the nose, rather than the mouth. // Based on a recent study researchers at Yale Universit...

Decrease in sense of smell seen in lupus patients

... daily life, for example in food that has spoiled or leaks in a gas line, could seriously compromise a person's health. The authors point out that olfaction is unfamiliar territory for rheumatologists and immunologists, but results from this and other studies demonstrate that an autoimmune mechanism may pl...

CSHL neuroscientists glimpse how the brain decides what to believe

... make confidence calculations, the researchers sought a way to demonstrate whether such calculations informed the rats' behavior. They ran a series of olfaction trials that featured an important modification of the original task design. As in the first set of trials, rats made decisions involving the discrimin...

Brain's Olfactory Bulb Grows With Sense of Smell

...rgery . "The correlation between olfactory bulb volume and olfactory function may potentially be used in combination with other factors influencing olfaction such as remaining olfactory function, age and duration of olfactory loss as a means to provide patients with individual information on the prognosis o...

Weizmann Institute scientists produce the first smell map

...s. The scientists also tested 70 new odors by predicting the neural patterns they would arouse and running comparisons with the unpublished results of olfaction experiments done at the University of Tokyo. They found that their predictions closely matched the experimental results. These findings lend suppor...

Subliminal smells bias perception about a person's likeability

...ged to counteract unconscious olfaction. The acute sensitivity of human olfaction tends to be underappreciated. In general, people tend to be dismissive of human olfaction and discount the role that smell plays in our everyday life, said Gottfried...

Rat Genetic Code Mapped

...r the changes are rat changes, mouse changes or human changes, say specialists. Rats have significant differences from mice and from people notably in olfaction and immune system genes. Thus researchers say, “what makes us different from rats or mice is not some unique human gene, but rather what the body ...

Olfaction in Medical Dictionary

Smell

... olfaction refers to the sense of smell . This sense is mediated by specialized senso...of the olfactory nerves ... SYNONYMS smell , aroma, odor, scent. ... olfaction n. The sense of smell . The act or process of smelling . ... The sense by...

Olfactory

... olfaction refers to the sense of smell. This sense is mediated by specialized sensory... smell works double duty, ... reaction in the olfactory neurons. ... olfaction n. The sense of smell. The act or process of smelling. [Latin olfactus , pa...

Olfaction in Biological News

Evolved Machines Selected as a Prime Contractor for DARPA Program to Engineer an Artificial Olfaction System

PALO ALTO, Calif., Oct. 21 /PRNewswire/ -- Evolved Machines, Inc. has been selected as a prime contractor under a new Defense Advanced Research Projects Agency (DARPA) program to engineer an artificial olfaction system incorporating "brain-like" neural pattern recognition. The $5.1 million dol...

Ancient olfaction protein is shared by many bugs, offering new pest control target

In the battle against insect pests, new research indicates that it may all come down to the sense of smell. A group of Rockefeller University scientists who had previously identified a key gene essential for the sense of smell in fruit flies now shows that this gene's function appears to be evoluti...

Entomological Society of America names new Fellows for 2008

...d's research has focused on the functional organization, neurophysiology, neurochemistry, and development of the insect olfactory system, the roles of olfaction in insect behavior, and the chemical ecology of insect-host interactions. He has served as mentor for 46 postdoctoral associates, 11 Ph.D. students...

No more big stink: scent lures mosquitoes, but humans can't smell it

...chemical ecology approach or finding smells that attract mosquitoes. The second, or what Leal has coined "reverse chemical ecology," involves studying olfaction after identifying attractants. Mosquito populations are typically monitored with two traps: the conventional carbon dioxide traps and the gravid fe...

Pregnant mice block out unwelcome admirers to protect their pups

...nant women. "As far as we know, human pregnancy is not affected by strange male odours, but it could help explain why many women report changes in olfaction during pregnancy," says Che Serguera, who carried out the research in Minichiello's lab. ...

Meeting to highlight health impacts of smell and taste

... and Other Communication Disorders (NIDCD), part of the National Institutes of Health, will be presenting their work at the International Symposium on olfaction and Taste. When: July 21-26, 2008 Where: Hyatt Regency Hotel at the Embarcadero, San Francisco Additional Information: Read on for a sampl...

International conference to release new findings on smell and taste

...Chemoreception Sciences ( http://www.achems.org ), which will be holding its 30th annual meeting in conjunction with the XV International Symposium on olfaction and Taste (ISOT; http://www.achems.org/i4a/pages/index.cfm?pageid=3493 ). During AChemS/ISOT, scientists from around the world are presenting their l...

Adaptation to parasites drive African fishes along different evolutionary paths

...species from P. fainzilberi males based on olfactory communication rather than color. Some of the genes known to influence mating behavior through olfaction in other vertebrate species are genes of the major histocompatibility complex (MHC). These genes code for receptor that bound molecules produced by in...

OHSU lab finds meth receptor that could lead to therapy

... phenylethylamines. The messenger RNA that codes for TAAR1 is expressed throughout the brain, including areas involved in motivation and drug craving, olfaction ?the sense of smell ?and temperature regulation, to name a few. "With this kind of pharmacological profile and brain distribution, we hypothesize...

Detecting explosives with honeybees

...s. By looking at such attributes as protein expression, the team sought to isolate genetic and physiological differences between those bees with good olfaction and those without. They also determined how well bees could detect explosives in the presence of potentially interfering agents, such as lotions, mot...

Olfaction in Biological Definition

Olfaction

Olfaction , the sense of smell , is the detection of chemicals dissolved in air (or, by animals that breathe water, in water). In vertebrates smells are sensed by the olfactory epithelium located in the nose and processed by the olfactory system . Contents showTocToggle("show"...

Olfaction in Biological Dictionary

Olfaction

Olfaction 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... olfaction n. The sense of smell. The act or process o...

Olfactory bulb

... The olfactory bulb is a structure of the vertebrate forebrain involved in olfaction, the perception of odors. olfaction refers to the sense of smell. This sense is mediated by specialized sensory cells of the nasal cavity of vertebrates, and, by analogy, sensory...