Navigation Links
Hearing impaired ears hear differently in noisy environments
Date:9/11/2012

WEST LAFAYETTE, Ind. - The world continues to be a noisy place, and Purdue University researchers have found that all that background chatter causes the ears of those with hearing impairments to work differently.

"When immersed in the noise, the neurons of the inner ear must work harder because they are spread too thin," said Kenneth S. Henry, a postdoctoral researcher in Purdue's Department of Speech, Language and Hearing Sciences. "It's comparable to turning on a dozen television screens and asking someone to focus on one program. The result can be fuzzy because these neurons get distracted by other information."

The findings, by Henry and Michael G. Heinz, an associate professor of speech, language and hearing sciences, are published as a Brief Communication in Nature Neuroscience. The work was funded by the National Institutes of Health and the National Institute on Deafness and Other Communication Disorders.

"Previous studies on how the inner ear processes sound have failed to find connections between hearing impairment and degraded temporal coding in auditory nerve fibers, which transmit messages from the inner ear to the brain," said Heinz, who studies auditory neuroscience. "The difference is that such earlier studies were done in quiet environments, but when the same tests are conducted in a noisy environment, there is a physical difference in how auditory nerve fibers respond to sound."

Hearing loss, suffered in varying degrees by 36 million American adults, means there is damage to sensory cells in the cochlea and to cochlear neurons as well. The cochlea is the part of the inner ear that transforms sound into electrical messages to the brain.

In this study, the researchers measured a variety of physiological markers in chinchillas, some with normal hearing and others with a cochlear hearing loss, as they listened to tones in quiet and noisy environments. Chinchillas are used because they have a
'/>"/>

Contact: Amy Patterson Neubert
apatterson@purdue.edu
765-494-9723
Purdue University
Source:Eurekalert  

Page: 1 2 3

Related medicine news :

1. Report: Strategies to prevent noise-induced hearing loss, tinnitus in soldiers
2. Rewired visual input to sound-processing part of the brain leads to compromised hearing
3. Not Enough Data to Advise Routine Hearing Screens for Older People: Experts
4. Suffering of Thousands Prompts FDA Hearing about Hip Implants
5. New screening test to help people with hearing loss in China
6. HIV Exposure Before Birth May Raise Kids Risk of Hearing Loss
7. Children exposed to HIV in the womb at increased risk for hearing loss
8. C-Section Babies May Be More Likely to Fail First Hearing Test
9. ASTRO chairman to testify at CARE Act hearing
10. Cone beam CT proves better for visualizing some causes of hearing loss at half the radiation dose
11. Grant awarded to help improve problem-solving skills for deaf and hard-of-hearing students
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Hearing impaired ears hear differently in noisy environments
(Date:4/25/2015)... Sports controversies continue to revolve around issues of abuse and violence. ... the Miami Dolphins and Richie Incognito, or off the field and ... abuse case. In a recent episode of SCI TV , ... locker room culture on teams. He examines what worked for the ... improve the locker room as a work place. , Steele ...
(Date:4/24/2015)... County, Illinois (PRWEB) April 24, 2015 ... event includes septic tank pumping ( http://www.zeitersseptics.com/multi-customer-discount.html ) of ... 3-customers to start the program. This does not include ... be applicable. Save $25-$65 per person. If someone is ... unit, or two tanks totaling approximately 2500 gallons or ...
(Date:4/24/2015)... New York, New York (PRWEB) April 24, 2015 ... continue to move forward in the federal ... of South Carolina. According to court documents, the ... Status Report on April 16th detailing, among other ... The report notes that counsel for both plaintiffs ...
(Date:4/24/2015)... Carinsurancequotesinfo.com has released a new blog ... to qualify for auto insurance as a ... auto insurance online, without having to follow a special ... parents can reduce their auto insurance expenses. The tips ... explained. , Clients can now visit an insurance ...
(Date:4/24/2015)... With years of experience providing ... proud to be partnered with a veterinary college where ... year. This partnership has brought new payment options for ... After providing an in-house payment plan for many years, ... wanted to increase financing options available to avoid having ...
Breaking Medicine News(10 mins):Health News:David Steele Discusses Locker Room Culture on SCI TV 2Health News:David Steele Discusses Locker Room Culture on SCI TV 3Health News:Zeiter's Septics Inc. Offers Multi Customer Septic Tank Cleaning Program in Cook, Putnam & Will Counties in May 2015 2Health News:Zeiter's Septics Inc. Offers Multi Customer Septic Tank Cleaning Program in Cook, Putnam & Will Counties in May 2015 3Health News:Federal Lipitor Lawsuits Progress, as New Status Report Details Preparation for Upcoming Bellwether Trials 2Health News:Federal Lipitor Lawsuits Progress, as New Status Report Details Preparation for Upcoming Bellwether Trials 3Health News:Auto Insurance Discounts for Single Parents - How to Qualify for Low Rates 2Health News:University of Missouri Veterinary Medical Teaching Hospital Teams with UGA 2
... older people fall, expert says, , , MONDAY, March 2 (HealthDay News) ... times more likely than normal to break a hip within a ... that might help in efforts to prevent both types of fractures. ... relationship between upper arm fractures and hip fractures, but we wanted ...
... and Amerinet Also Extend Existing Multi-Year Supplier AgreementsIRVINE, ... Masimo (Nasdaq: MASI ), the ... Low-Perfusion pulse oximetry, announced today that three of ... have established a new Pulse CO-Oximetry(TM) category and ...
... Visionary Leadership in Academia, Public Policy and Global HealthContinues Long ... the World Stage and in the Classroom , ... Ph.D., Chair of the Department of Global Health and Social ... the 17th President of Dartmouth by the College,s ...
... Available at Atkins.com and in Stores NationwideDENVER, March 2 ... products, announced that your favorite Atkins(TM) bars are back! ... recalled in the nationwide recall. New bars are ... will be in retail stores across the country by ...
... EVANSTON, Ill. --- Optical technology developed by a Northwestern ... be effective in detecting the presence of pancreatic cancer ... to clinical trial results published in the journal ... which researchers hope could help raise the extremely low ...
... Salsa Workouts & MILK in National City Health FairSAN CLEMENTE, Calif., ... get in touch with their Latin side. Sashaying to the ... to better health. Dancing after all is a form of ... crucial to helping curb health problems like diabetes and obesity that ...
Cached Medicine News:Health News:In Elderly Women, Hip Fractures Often Follow Arm Breaks 2Health News:Three Healthcare GPOs to Offer Masimo Rainbow SET(R) Pulse CO-Oximetry(TM) to Their Members 2Health News:Three Healthcare GPOs to Offer Masimo Rainbow SET(R) Pulse CO-Oximetry(TM) to Their Members 3Health News:Three Healthcare GPOs to Offer Masimo Rainbow SET(R) Pulse CO-Oximetry(TM) to Their Members 4Health News:Three Healthcare GPOs to Offer Masimo Rainbow SET(R) Pulse CO-Oximetry(TM) to Their Members 5Health News:Dr. Jim Yong Kim Appointed 17th President of Dartmouth College 2Health News:Dr. Jim Yong Kim Appointed 17th President of Dartmouth College 3Health News:Dr. Jim Yong Kim Appointed 17th President of Dartmouth College 4Health News:Dr. Jim Yong Kim Appointed 17th President of Dartmouth College 5Health News:Attention Snackers: Your Favorite Peanut Butter Bars Are Back! 2Health News:Optical techniques show continued promise in detecting pancreatic cancer 2Health News:Optical techniques show continued promise in detecting pancreatic cancer 3Health News:Optical techniques show continued promise in detecting pancreatic cancer 4Health News:Drink and Dance Your Way to Health 2Health News:Drink and Dance Your Way to Health 3
(Date:4/24/2015)... 24, 2015 Hospira, Inc. (NYSE: ... of biosimilar therapies, spoke about the importance of extrapolation ... Generics Association (EGA) annual European Biosimilars Group conference in ... also announced the publication of a pivotal white paper ... full promise of biosimilars." Speaking at ...
(Date:4/24/2015)... Mass. , April 24, 2015  Blueprint ... BLU-554, a selective and potent inhibitor of fibroblast ... activity in models of hepatocellular carcinoma (HCC) that ... therapeutic candidate, BLU-554 induced complete tumor regression in ... an FGFR4-activating ligand at the highest dose levels. ...
(Date:4/23/2015)... IRVINE, Calif., April 23, 2015  Edwards Lifesciences Corporation (NYSE: ... of heart valves and hemodynamic monitoring, today reported net ... million, or $1.12 per diluted share.  Net income for ... or $0.56 per diluted share, and non-GAAP net income ... Net sales for the quarter ended March 31, 2015 ...
Breaking Medicine Technology:Hospira Leadership Presents at Preeminent European Biosimilars Forum, Announces New White Paper on Extrapolation 2Hospira Leadership Presents at Preeminent European Biosimilars Forum, Announces New White Paper on Extrapolation 3Hospira Leadership Presents at Preeminent European Biosimilars Forum, Announces New White Paper on Extrapolation 4Hospira Leadership Presents at Preeminent European Biosimilars Forum, Announces New White Paper on Extrapolation 5Hospira Leadership Presents at Preeminent European Biosimilars Forum, Announces New White Paper on Extrapolation 6Hospira Leadership Presents at Preeminent European Biosimilars Forum, Announces New White Paper on Extrapolation 7Blueprint Medicines Presents New Preclinical Data Demonstrating Its Drug Candidate BLU-554 Induces Significant Tumor Regression in Models of Hepatocellular Carcinoma 2Blueprint Medicines Presents New Preclinical Data Demonstrating Its Drug Candidate BLU-554 Induces Significant Tumor Regression in Models of Hepatocellular Carcinoma 3Edwards Lifesciences Reports First Quarter Results 2Edwards Lifesciences Reports First Quarter Results 3Edwards Lifesciences Reports First Quarter Results 4Edwards Lifesciences Reports First Quarter Results 5Edwards Lifesciences Reports First Quarter Results 6Edwards Lifesciences Reports First Quarter Results 7Edwards Lifesciences Reports First Quarter Results 8Edwards Lifesciences Reports First Quarter Results 9Edwards Lifesciences Reports First Quarter Results 10Edwards Lifesciences Reports First Quarter Results 11Edwards Lifesciences Reports First Quarter Results 12Edwards Lifesciences Reports First Quarter Results 13Edwards Lifesciences Reports First Quarter Results 14Edwards Lifesciences Reports First Quarter Results 15Edwards Lifesciences Reports First Quarter Results 16
...  Reportlinker.com announces that a new market ... catalogue: Triple Analysis: ... http://www.reportlinker.com/p0284888/Triple-Analysis-Apoptosis-Cancer-Vaccines-and-Antibodies.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Drug_and_Medication This ... development strategies by the two mechanism/target/effect ...
... Research Institute (IDRI) announces today that GlaxoSmithKline (GSK) Biologicals ... equipment that will assist IDRI as it designs and ... the developing world. IDRI will apply the gift as ... tuberculosis, leishmaniasis, malaria, leprosy, and pandemic influenza. ...
Cached Medicine Technology:Triple Analysis: Apoptosis, Cancer Vaccines and Antibodies 2Triple Analysis: Apoptosis, Cancer Vaccines and Antibodies 3Triple Analysis: Apoptosis, Cancer Vaccines and Antibodies 4Triple Analysis: Apoptosis, Cancer Vaccines and Antibodies 5GlaxoSmithKline Donates Scientific Equipment to Advance IDRI's Global Health Mission 2
The base of the staple is round and threaded to enable screwing onto the stapler. The base also has spikes. The legs of the staple are contoured to prevent the staple from backing out....
... Cement consists of a two ... bone cement liquid within a ... polyethylene bag,containing bone cement powder ... interiors of the blister pack,and ...
... ORTHOSET Radiopaque Bone Cement consists ... a sterile,ampule containing bone cement ... and a sterile polyethylene bag,containing ... peelable pouch. The interiors of ...
A "doughy" type of bone cement intended for manual application....
Medicine Products: