Navigation Links
Do the blind have a more acute sense of smell?
Date:4/26/2010

Montreal, April 26, 2010 An ongoing study by Mathilde Beaulieu-Lefebvre, a graduate student from the Universit de Montral Department of Psychology, has debunked the myth that the blind have a more acute sense of smell than the sighted. Vision loss simply makes blind people pay more attention to how they perceive smells.

"If you enter a room in which coffee is brewing, you will quickly look for the coffee machine. The blind person entering the same room will only have the smell of coffee as information," says Beaulieu-Lefebvre. "That smell will therefore become very important for their spatial representation."

The three-step study tested 25 subjects, 11 of whom were blind from birth. Participants answered a questionnaire and were subjected to two experiments: one where they had to differentiate 16 different perfumes using an olfactometer, another where they lay in a tomodensitometer to identify three smells: a rose, vanilla and butanol (a sweet alcohol).

"There is an urban legend that blind people have better smell than the sighted. We are proving this to be false," says Maurice Ptito, a professor at the Universit de Montral School of Optometry and Beaulieu-Lefebvre's thesis director. "However, the blind do set themselves apart when it comes to cognitive efforts."

Using functional imagery, the team determined that the blind use their secondary olfactory cortex more than the sighted when they smell. They also use the occipital cortex, which is normally used for vision. "That's interesting because it means the blind are recuperating that part of their brain," says Dr. Ptito. "We're not speaking of recycling per se, yet that part of the brain is reorganized and used otherwise."

This research could lead to concrete applications in the re-adaptation of the blind. "For instance, smells are very peculiar in shopping centers," says Beaulieu-Lefebvre. "A hair salon, a pharmacy and a clothing store each have their own distinc
'/>"/>

Contact: Sylvain-Jacques Desjardins
sylvain-jacques.desjardins@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Being Blinded By Jealousy Can Be Real
2. Breakthrough design opens door to full screen Braille displays for the blind
3. Prodigy Re-Launches Syringe-Filling System for Blind and Low-Vision Diabetics
4. Second Dose of Gene Therapy for Inherited Blindness Proves Safe in Animal Studies
5. Go Wild with Blinds Retailer Tuiss.co.uk and Environmental Charity Landlife
6. First blinded study of venous insufficiency prevalence in MS shows promising results
7. Valentines Party Planned for the Blind and Disabled
8. ChildFund Partners With Christian Blind Mission in Haiti
9. Top Stars Rally for Fighting Blindness, Sending Their Message out to 160 Million Homes on Multiple Cable Networks, December 25th, Preceded by President George Herbert Walker Bush Describing the Frank Capra Classic, Its A Wonderful Life for the Bl
10. Gene Findings in Autism, Blindness at Childrens Hospital Top National Lists of Medical Advances in 2009
11. The American Foundation for the Blind Welcomes New Board Chair, Concetta F. Conkling
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... Voted one of the most reliable online dress ... on providing its new and old customers with the ... has announced its new collection of high end wedding ... according to the latest fashion trends. Additionally, they are ... , As a matter of fact, high end special ...
(Date:7/24/2014)... July 24, 2014 Four Seasons ... month of its $3 million renovation of the famed ... presidential/residential three-bedroom suites, just in time to welcome summer ... With design direction from the internationally-acclaimed BraytonHughes Design Studios, ... on the property and the largest in Hawaii—received a ...
(Date:7/24/2014)... By Amy Norton HealthDay ... stereotype of the sex-crazed teenage boy may be dead wrong, according ... from romantic relationships. In interviews with 33 boys between the ... wanted a relationship with a girl for the closeness and trust. ... "main goal" in starting a relationship with a girl. "In ...
(Date:7/24/2014)... mellitus (DM) appears to increase the risk for head and ... in people with DM, but the risk of HNC in ... and neck cancer is the sixth most common type of ... and for an estimated 650,000 new cancer cases and 350,000 ... Longitudinal Health Insurance Research Database to examine the risk of ...
(Date:7/24/2014)... July 24, 2014 This year the ... Light Electric and Jackson National Life, will be held on ... 7 am, the Kids Fun Run at 7:50 am, the ... at 9 a.m. , “The Walk to End Alzheimer’s unites ... dedication in the fight against this devastating disease, “stated Linda ...
Breaking Medicine News(10 mins):Health News:BellasDress Helps Brides Get High End Wedding Dresses for Their Romantic Weddings 2Health News:Four Seasons Resort Maui's Newly Designed Top Suites Debut 2Health News:Four Seasons Resort Maui's Newly Designed Top Suites Debut 3Health News:Four Seasons Resort Maui's Newly Designed Top Suites Debut 4Health News:Four Seasons Resort Maui's Newly Designed Top Suites Debut 5Health News:Teenage Boys Want Intimacy, Not Just Sex, Survey Finds 2Health News:Teenage Boys Want Intimacy, Not Just Sex, Survey Finds 3Health News:Alzheimer's Association Walk to End Alzheimer's Steps Off Saturday, September 20 in Denver 2Health News:Alzheimer's Association Walk to End Alzheimer's Steps Off Saturday, September 20 in Denver 3
... standard Prostate Specific Antigen (PSA) test for prostate cancer ... At the Annual EAU Congress, which will be held ... Dr. Arun Sreekumar - University of Michigan (US) - ... supposedly discriminate between aggressive and non-aggressive prostate cancers: sarcosine. ...
... Peripheral Arterial Disease Patients at High Cardiovascular Risk ... 6,200-Person NHANES StudySAN DIEGO, Calif., March 10 ... tests--like the ankle brachial index (ABI)--along with traditional ... the potential to prevent devastating heart attacks in ...
... Help Peripheral Arterial Disease (PAD) Patients With Critical ... Attempts to treat critical limb ischemia in ... are still thwarted by restenosis (the re-narrowing of ... stenting), the need for repeat treatments and the ...
... Certification Underscores Lionbridge,s Market-Leading Translation Management Program ... 10 Lionbridge (Nasdaq: LIOX ... ISO 13485:2003 certification which verifies quality management ... expands Lionbridge,s dedicated Life Sciences program and ...
... Conference Call to Follow ReleaseDENVER, March 10 ... "Company") (OTC Bulletin Board: GLOB), an international e-Health, ... quarter and year end financial results on Wednesday, ... The Company will host a conference call at ...
... BioMarin Pharmaceutical Inc. (Nasdaq: BMRN ) today announced ... Officer of BioMarin, will present a company update at the ... on Tuesday, March 17th, 2009 at 9:30 a.m. ET. ... conference call via the investor section of the BioMarin website, ...
Cached Medicine News:Health News:Dr. Arun Sreekumar lectures on new candidate biomarker at Annual EAU Congress 2Health News:Simple Test Helps Predict Heart Attack Risk 2Health News:Simple Test Helps Predict Heart Attack Risk 3Health News:Simple Test Helps Predict Heart Attack Risk 4Health News:Promising Three-year Data: Saving Limbs With Drug-Eluting Stents 2Health News:Promising Three-year Data: Saving Limbs With Drug-Eluting Stents 3Health News:Promising Three-year Data: Saving Limbs With Drug-Eluting Stents 4Health News:Lionbridge Receives ISO 13485:2003 Certification for Quality Management 2Health News:Global Med Technologies(R), Inc. to Report Fourth Quarter and Year End Financial Results on Wednesday, March 25, 2009 2Health News:Global Med Technologies(R), Inc. to Report Fourth Quarter and Year End Financial Results on Wednesday, March 25, 2009 3Health News:BioMarin to Present at the Cowen and Company 29th Annual Health Care Conference 2
(Date:7/24/2014)... International Inc. (NYSE: MTD ) today announced ... highlights: , Sales in local currency increased ... year. Reported sales increased 5% which included a 1% ... share as reported (EPS) were $2.49, compared with $2.24 ... $2.57, an increase of 9% over the prior-year amount ...
(Date:7/24/2014)... BUENA, N.J. , July 24, 2014 ... New Jersey based specialty generic pharmaceutical company, ... resignation from its Board of Directors.  Mr. Finio has ... company, and under the terms of his acceptance of ... continue in his role as Director for IGI Laboratories, ...
(Date:7/24/2014)... , July 24, 2014  Alimera Sciences, Inc. ... that specializes in the research, development and commercialization of ... its second quarter of fiscal year 2014 financial results ... An investor conference call will follow on the same ... conference call will be hosted by Dan Myers ...
Breaking Medicine Technology:Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 2Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 3Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 4Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 5Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 6Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 7Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 8Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 9Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 10Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 11Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 12Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 13Mettler-Toledo International Inc. Reports Second Quarter 2014 Results 14IGI Laboratories, Inc. Announces Change To Its Board Of Directors 2Alimera Sciences To Release Second Quarter 2014 Results 2
... , CLEVELAND, Nov. 30 DATATRAK International, Inc. (OTCQX: ... solutions for the clinical trials industry, today announced that PFC ... PFC will now have the ability to contract for DATATRAK,s ... product suite. In addition, PFC will also have access ...
... Breast-Specific Gamma Imaging (BSGI) has been proven to be ... carcinoma in situ (DCIS), a difficult to diagnose breast cancer. ... lesions independent of tissue density and discover very early stage ... of the Radiological Society of North America (RSNA), BSGI is ...
Cached Medicine Technology:PFC Pharma Joins DATATRAK's CRO Connect Program 2PFC Pharma Joins DATATRAK's CRO Connect Program 3PFC Pharma Joins DATATRAK's CRO Connect Program 4Breast-Specific Gamma Imaging Proves Highly Sensitive for the Detection of Ductal Carcinoma In Situ 2
... MyiQ real-time PCR detection system offers an ... green fluorescent dyes such as FAM and ... with the iCycler thermal cycler, offering superior ... driven performance. The MyiQ real-time PCR detection ...
... LightCycler System is the smartest innovation ... System enables you to perform rapid ... and simultaneously quantify and analyze the ... The unique Melting Curve Analysis-Option allows ...
Chemically Resistant Sealing Mat for 96ch, 1.1ml or 2.0ml, Deep Well, Round Available Sterile...
96-well Silicone Compression Mat, Bulk...
Medicine Products: