Navigation Links
Nostrils alternate to process competing odors
Date:8/20/2009

When the nose encounters two different scents simultaneously, the brain processes them separately through each nostril in an alternating fashion.

This finding by researchers at Rice University in Houston is the first demonstration of "perceptual rivalry" in the olfactory system. The study was published online today by the journal Current Biology and will appear in the Sept. 29 print edition.

"Our discovery opens up new avenues to explore the workings of the olfactory system and olfactory awareness," said Denise Chen, assistant professor of psychology, who coauthored the research paper with graduate student Wen Zhou.

For the study, 12 volunteers sampled smells from two bottles containing distinctively different odors. One bottle had phenyl ethyl alcohol, which smells like a rose, and the other had n-butanol, which smells like a marker pen. The bottles were fitted with nosepieces so that volunteers could sample both scents simultaneously -- one through each nostril.

During 20 rounds of sampling, all 12 participants experienced switches between smelling predominantly the rose scent and smelling predominantly the marker scent. Some experienced more frequent and drastic switches than others, but there was no predictable pattern of the switch across the whole group of volunteers or within individuals.

Chen said this "binaral rivalry" between the nostrils resembles the rivalry that occurs between other pairs of sensory organs. When the eyes simultaneously view two different images -- one for each eye -- the two images are perceived in alternation, one at a time. And when alternating tones an octave apart are played out of phase to each ear, most people experience a single tone that goes back and forth from ear to ear.

In the laboratory setting in which each nostril simultaneously received a different smell, the participants experienced an "olfactory illusion," she said. "Instead of perceiving a constant
'/>"/>

Contact: David Ruth
druth@rice.edu
713-348-6327
Rice University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Particle accelerator may reveal shape of alternate dimensions
2. USC researchers identify alternate pathway that leads to palate development
3. Thermochemical process converts poultry litter into bio-oil
4. New insight into the mechanisms of voltage sensing and transduction in biological processes
5. UCI researchers restore memory process in most common form of mental disability
6. ACT Ensures Integrity of Testing Process Through Deployment of BIO-keys(R) Biometric ID Technology
7. Engineered weathering process could mitigate global warming
8. Raydiance collaborates with Rutgers, MTF to develop innovative tissue processing approaches
9. Atmels Biometric Co-processor Solution Featured at AIS/CBX
10. It is important to demonstrate the influence of the microenvironment in the process of metastasis
11. Pourquié lab links beta-catenin gradient to process of somite formation
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nostrils alternate to process competing odors
(Date:12/17/2014)...  HITLAB SM announced today its completion ... confirm its adherence to current U.S. Food and ... to conduct regulated smart device and smart phone ... safety and research quality. "HITLAB is ... delivery with innovative technology," said Laura Pugliese ...
(Date:12/11/2014)... --Research and Markets , ... ) has announced the addition of the ... to their offering. One major ... technology. With continuous advances in technology, it is ... standard that meets the needs and expectations of ...
(Date:12/10/2014)... RALEIGH, N.C. , Dec. 9, 2014  Valencell, ... announced it is seeing a staggering demand from its ... demand, the Company revealed, is not solely coming from ... industries as well. "A wearable is only ... a result, accuracy is the ultimate driver in long-term ...
Breaking Biology News(10 mins):HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... Curcumin, the major component in the spice turmeric, ... suppression of head and neck cancer cell growth, researchers ... naturally occurring spice widely used in South Asian and ... have medicinal properties, attributed to its anti-inflammatory effects. Previous ...
... cancer might soon be increased with a new vitamin E ... of Technology (QUT) prostate cancer researchers are leading the fight ... Dr Patrick Ling, whose research will be a centrepiece ... it opens in Brisbane, is leading a team of researchers ...
... Junction, NJ (October 19, 2010) Patients undergoing ... Inc.,s FDA-cleared AIGISRx Antibacterial Envelope enjoyed a ... infection rate of 0.48% in the first 1.9 ... published results of TYRX,s COMMAND Clinical Study. There ...
Cached Biology News:Major component in turmeric enhance effect of chemotherapy drug in head and neck cancer 2Major component in turmeric enhance effect of chemotherapy drug in head and neck cancer 3Vitamin E in front line of prostate cancer fight 2Vitamin E in front line of prostate cancer fight 3TYRX AIGISRx antibacterial envelope shows low infection rate, high CIED procedure success 2
(Date:12/24/2014)... and NEW YORK , Dec. 24, ... a biopharmaceutical company advancing patient care in critical areas, ... 3,500,000 shares of common stock, and warrants to purchase ... at an offering price of $4.00 per share and ... exercise price of $5.00, are exercisable immediately, and expire ...
(Date:12/24/2014)... December 23, 2014 Earlier this year ... L. Sherley, director of the Adult Stem Cell Technology ... often overlooked and under appreciated unique property of adult ... Distributed Stem Cells: Misunderstood in the Past, Important for ... congress participants. He gave the address at the ...
(Date:12/24/2014)... 23, 2014 Nashville Fertility Center announced ... treasurer for the American Society for Reproductive Medicine (ASRM), ... research in reproductive medicine. In his new role ... the executive board and will have a voice in ... has actively supported ASRM since 1984 when he joined ...
(Date:12/24/2014)... LONDON , December 23, 2014 ... Review Algeria , out today and available for free ... the actors driving change and growth in the sector today. ... has scored notable successes has been in developing a homegrown ... 70 percent local production still remains some way off. A ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3
... Dec. 22, 2010 Neogen Corporation (Nasdaq: ... 2nd Q Results WebcastWhen: , Tuesday, January 4, 2011 ... over the Internet -- Simply log on to the ... Maynard of Neogen Corporation, +1-800-234-5333.If you are unable to ...
... 21, 2010) -- A researcher known widely for ... use of minimally toxic, environmentally friendly chemicals will ... Dr. Paul Anastas, science advisor to the U.S. ... the EPA,s Office of Research and Development (ORD), ...
... YORK, Dec. 21, 2010 Reportlinker.com announces that ... its catalogue: Nanobiotechnologies- applications, markets ... SummaryNanotechnology is the creation and ... control of matter on the nanometer-length scale (a ...
Cached Biology Technology:Science advisor to the US EPA to speak to industry, academic leaders on sustainability innovations 2Science advisor to the US EPA to speak to industry, academic leaders on sustainability innovations 3Reportlinker Adds Nanobiotechnologies- applications, markets and companies 2Reportlinker Adds Nanobiotechnologies- applications, markets and companies 3Reportlinker Adds Nanobiotechnologies- applications, markets and companies 4Reportlinker Adds Nanobiotechnologies- applications, markets and companies 5Reportlinker Adds Nanobiotechnologies- applications, markets and companies 6Reportlinker Adds Nanobiotechnologies- applications, markets and companies 7Reportlinker Adds Nanobiotechnologies- applications, markets and companies 8Reportlinker Adds Nanobiotechnologies- applications, markets and companies 9Reportlinker Adds Nanobiotechnologies- applications, markets and companies 10Reportlinker Adds Nanobiotechnologies- applications, markets and companies 11Reportlinker Adds Nanobiotechnologies- applications, markets and companies 12Reportlinker Adds Nanobiotechnologies- applications, markets and companies 13Reportlinker Adds Nanobiotechnologies- applications, markets and companies 14Reportlinker Adds Nanobiotechnologies- applications, markets and companies 15Reportlinker Adds Nanobiotechnologies- applications, markets and companies 16Reportlinker Adds Nanobiotechnologies- applications, markets and companies 17Reportlinker Adds Nanobiotechnologies- applications, markets and companies 18Reportlinker Adds Nanobiotechnologies- applications, markets and companies 19Reportlinker Adds Nanobiotechnologies- applications, markets and companies 20Reportlinker Adds Nanobiotechnologies- applications, markets and companies 21
Umbilical cord blood CD14+ Monocytes, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Monocytes, B Cells and NK Cells...
Umbilical cord blood CD19+ B cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Monocytes, B Cells and NK Cells...
... been developed specifically for the stabilization ... microwell plates/strips. Coating Stabilizer maintains ... antibody or protein antigen portion of ... is filtered at 0.2 microns., ,Contents: ...
... Block is an anodized aluminum, solvent-resistant block ... to provide efficient thermal transfer to samples ... of the HT96 Isothermal Block replaces Cat. ... design allowing for compatibility with robotic applications. ...
Biology Products: