Navigation Links
Researcher developing new method for hearing loss assessment
Date:9/6/2007

WEST LAFAYETTE, Ind. - A Purdue University researcher is working on a new technique to diagnose hearing loss in a way that more accurately reflects real-world situations.

"The traditional way to assess speech understanding in people with hearing loss is to put them in a quiet room and ask them to repeat words produced by one person they can't see," said Karen Iler Kirk, a professor of speech, language and hearing sciences. "The goal of our research is to develop new tests that reflect more natural listening situations with visual cues, different background noises, voice quality, dialects and speaking rates. This is a more accurate way to predict how people perceive speech in the real world and, therefore, can help us determine appropriate therapy and interventions, such as cochlear implants.

"The better the diagnostic tool we have to make such decisions, the better we can serve our patients."

Kirk received a $2.8 million grant from the National Institute on Deafness and Other Communication Disorders for the five-year project to develop two new audiovisual and multi-talker sentence tests that expand upon the traditional spoken word recognition format that has been used since the 1950s. One test is for adults and the other for children. More than 1,000 people ages 4-65 will participate in the study.

"The traditional spoken word recognition format has been used to determine the need for some sensory aids, such as hearing aids, which are used to amplify sound," Kirk said. "However, it is not the best method for assessing the benefits of other sensory aids, such as the more expensive cochlear implants."

A cochlear implant is an electronic device that can provide a sense of sound to someone who is deaf or severely hard of hearing. The device, which is surgically implanted, picks up and processes sound that is converted into electric impulses that are sent to the auditory nerve. More than 100,000 people worldwide have received cochlear implants, and more health insurance companies are paying for the surgery and therapy, Kirk said.

This project also is expanding word lists from the traditional monosyllabic words to a greater range of words based on how often they are used and lexical density - the number of words phonetically similar to the target. For example, the word "cat" has a number of lexical neighbors such as "bat," "cap," "cut" and "scat." A word like "banana" may be used frequently but has few words that sound similar.

The 10 diverse speakers, who are recording more than 6,000 sentences combined, will not be producing perfectly articulated speech.

"It's important to use sentence materials that are produced by different speakers because in the real world, we do not listen to just one person," Kirk said.

In addition to the auditory component, the materials will be presented in a visual format so listeners can see and hear the phrase.

"This is really important because hearing-impaired people often have great difficulty understanding speech if they are just listening. Seeing the face and following lip reading cues can help someone understand the intended message," she said.

Participants will be tested in auditory-only, visual-only or auditory plus visual modalities. At the end of the project, DVDs containing the test, as well as instruction booklets, data-gathering forms and a manual for data interpretation, will be available to professionals.

Another benefit from this study will be the raw data generated.

"Just collecting information from 1,000 individuals and measuring how well they perform on these tests gives us tremendous information that is not available elsewhere," Kirk said.


'/>"/>

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

Related medicine news :

1. Researchers urge caution in using ear tube surgery
2. Researchers Scale to assess the Severity of Epilepsy in Kids
3. Ecstasy shrinks brain!!-researchers unveil the secrets of MDMA.
4. New Hair in 15 Days Could Now Be A Possibility Say Researchers
5. Researchers at Cornell University as been reported using research fund by false claims
6. Researchers trick Alzheimers Enzyme
7. Researchers find new HIV hiding place
8. Gene researchers make Malaria-resistant mosquito
9. Researchers developed world’s smallest toothbrus
10. Researchers discover receptor cells that can cause epilepsy
11. 15 Anti-SARS Drugs Identified By China-Europe Team of Researchers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... June 26, 2016 , ... On June 10-11, 2016, A ... 2016 Cereal Festival and World’s Longest Breakfast Table in Battle Creek, MI, where the ... history as home to some of the world’s leading providers of cereal and other ...
(Date:6/26/2016)... Michigan (PRWEB) , ... June 26, 2016 , ... ... to fertility once they have been diagnosed with endometriosis. These women need a ... they also require a comprehensive approach that can help for preservation of fertility ...
(Date:6/25/2016)... ... 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX users can easily ... of Pixel Film Studios. , ProHand Cartoon’s package transforms over 1,300 hand-drawn pictures ... . Simply select a ProHand generator and drag it above media or text in ...
(Date:6/25/2016)... ... ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department of Health and ... their exemplary accomplishments in worksite health promotion. , The Wellness at Work Awards took ... the BWI Marriott in Linthicum Heights. iHire was one of 42 businesses to receive ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... June 19, ... the dangers associated with chronic pain and the benefits of holistic treatments, Serenity ... who are suffering with Sickle Cell Disease. , Sickle Cell Disease (SCD) is a ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... , June 27, 2016  VMS Rehab Systems, Inc. ... will take whatever measures required to build a strong ... which is currently listed on the OTC Markets-pink current ... Chairman and CEO, "We are seeing an anomaly in ... understand, not only by the Company, but shareholders and ...
(Date:6/24/2016)... 24, 2016  Collagen Matrix, Inc., ("Collagen Matrix") ... manufacturing of collagen and mineral based medical devices ... Bill Messer has joined the company ... leverage the growing portfolio of oral surgery, neurosurgery, ... Bill joins the Collagen Matrix executive team as ...
(Date:6/24/2016)... 24, 2016 ... the addition of the " Global Markets for ... This report focuses on ... updated review, including its applications in various applications. The ... which includes three main industries: pharmaceutical and biotechnology, food ...
Breaking Medicine Technology: