Featured Research

from universities, journals, and other organizations

Mild Hearing Loss Leaves Lasting Impact On Neurological Processes

Date:
August 31, 2007
Source:
New York University
Summary:
Mild to moderate forms of hearing loss can have a lasting impact on the auditory cortex, according to new findings. The results showed that the projection to auditory cortex had changed following a brief period of hearing loss. Specifically, the researchers found that the synaptic response of the auditory neurons adapted more rapidly and to a greater extent. They also found that auditory cortex neurons became more sensitive to stimulation.

Mild to moderate forms of hearing loss can have a lasting impact on the auditory cortex, according to findings by researchers at New York University's Center for Neural Science. The study, which is the first to show central effects of mild hearing loss, appears in a recent issue of the Journal of Neuroscience.

Previously, researchers had been unable to conclusively determine the neurological impact of mild forms of hearing loss, which occurs when the pathway by which sound reaches the cochlea is disrupted--such as is experienced with middle ear infections during childhood. The NYU study sought to address this question in an animal model by measuring the impact of conductive hearing loss without injury to the cochlea.

The researchers induced hearing loss in the subjects during early development, then measured the functionality of neural connections within the subjects' auditory cortex, which processes all acoustic cues.

The results showed that the projection to auditory cortex had changed following a brief period of hearing loss. Specifically, the researchers found that the synaptic response of the auditory neurons adapted more rapidly and to a greater extent. They also found that auditory cortex neurons became more sensitive to stimulation.

These findings indicate that auditory cortex function is susceptible to relatively modest loss of hearing loss during development and suggest that perceptual deficits may be linked to alterations in the central nervous system.

The study was authored by NYU scientists Han Xu, Vibhakar Kotak, and Dan Sanes, working in NYU's Center for Neural Science.


Story Source:

The above story is based on materials provided by New York University. Note: Materials may be edited for content and length.


Cite This Page:

New York University. "Mild Hearing Loss Leaves Lasting Impact On Neurological Processes." ScienceDaily. ScienceDaily, 31 August 2007. <www.sciencedaily.com/releases/2007/08/070830150056.htm>.
New York University. (2007, August 31). Mild Hearing Loss Leaves Lasting Impact On Neurological Processes. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2007/08/070830150056.htm
New York University. "Mild Hearing Loss Leaves Lasting Impact On Neurological Processes." ScienceDaily. www.sciencedaily.com/releases/2007/08/070830150056.htm (accessed October 23, 2014).

Share This



More Health & Medicine News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Fears Keep Guinea Hospitals Empty

Ebola Fears Keep Guinea Hospitals Empty

AP (Oct. 23, 2014) Fears of Ebola are keeping doctors and patients alike away from hospitals in the West African nation of Guinea. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
More People Diagnosed With TB In 2013, But There's Good News

More People Diagnosed With TB In 2013, But There's Good News

Newsy (Oct. 22, 2014) The World Health Organizations says TB numbers rose in 2013, but it's partly due to better detection and more survivors. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins