Traditional Hearing Tests may Not Detect Common Form of Hearing Loss

by Bidita Debnath on  April 23, 2017 at 12:04 AM Research News
RSS Email Print This Page Comment bookmark
Font : A-A+

Traditional clinical hearing tests often fail to detect patients with a common form of inner ear damage that might otherwise be detected by more challenging behavioural tests.
 Traditional Hearing Tests may Not Detect Common Form of Hearing Loss
Traditional Hearing Tests may Not Detect Common Form of Hearing Loss

Such tests may not be able to diagnose those facing problems in certain situations, like hearing speech in a noisy room, said the study published in the journal Frontiers in Neuroscience.

This type of "hidden hearing loss" presents itself as essentially normal hearing in the clinic, where audiograms -- the gold-standard for measuring hearing thresholds -- are typically conducted in a quiet room.

The reason some forms of hearing loss may go unrecognised in the clinic is that hearing involves a complex partnership between the ear and the brain.

It turns out that the central auditory system can compensate for significant damage to the inner ear by turning up its volume control, partially overcoming the deficiency, said the study's lead author Richard Salvi, Director, Centre for Hearing and Deafness at University at Buffalo, New York.

"You can have tremendous damage to inner hair cells in the ear that transmit information to the brain and still have a normal audiogram," he said.

"But people with this type of damage have difficulty hearing in certain situations, like hearing speech in a noisy room. Their thresholds appear normal. So they're sent home," Salvi said.

Ear damage reduces the signal that goes the brain. That results in trouble hearing, but that's not what's happening here, because the brain "has a central gain control, like a radio, the listener can turn up the volume control to better hear a distant station", Salvi added.

Source: IANS

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

Related Links

More News on:

Tinnitus Presbycusis Acoustic Neuroma Meniere’s Disease Hearing Aids Hearing Tests in Newborns Hearing Loss Usher Syndrome Alport Syndrome Audiometry 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Find a Doctor

Stay Connected

  • Available on the Android Market
  • Available on the App Store

Facebook

News Category

News Archive