Navigation Links
UT Dallas study reveals effect of loud noises on brain
Date:7/31/2014

t a time may lead to permanent hearing loss, according to the NIDCD.

Researchers observed how the two types of hearing loss affected speech sound processing in the rats by recording the neuronal response in the auditory cortex a month after the noise exposure. The auditory cortex, one of the main areas that processes sounds in the brain, is organized on a scale, like a piano. Neurons at one end of the cortex respond to low-frequency sounds, while other neurons at the opposite end react to higher frequencies.

In the group with severe hearing loss, less than one-third of the tested auditory cortex sites that normally respond to sound reacted to stimulation. In the sites that did respond, there were unusual patterns of activity. The neurons reacted slower, the sounds had to be louder and the neurons responded to frequency ranges narrower than normal. Additionally, the rats could not tell the speech sounds apart in a behavioral task they could successfully complete before the hearing loss.

In the group with moderate hearing loss, the area of the cortex responding to sounds didn't change, but the neurons' reaction did. A larger area of the auditory cortex responded to low-frequency sounds. Neurons reacting to high frequencies needed more intense sound stimulation and responded slower than those in normal hearing animals. Despite these changes, the rats were still able to discriminate the speech sounds in a behavioral task.

"Although the ear is critical to hearing, it is just the first step of many processing stages needed to hold a conversation," Kilgard said. "We are beginning to understand how hearing damage alters the brain and makes it hard to process speech, especially in noisy environments."


'/>"/>

Contact: Ben Porter
ben.porter@utdallas.edu
972-883-2193
University of Texas at Dallas
Source:Eurekalert  

Page: 1 2

Related biology news :

1. UT Dallas researchers awarded $4.3 million to create next-generation technologies
2. UT Dallas researchers pushing the boundaries of virtual reality
3. UT Dallas researchers find early success in new treatment for stroke recovery
4. UT Dallas computer scientists create 3-D technique
5. UT Dallas study: Initial success for new tinnitus treatment
6. UT Dallas professor wins $2.3 million NIH award
7. UT Dallas awarded $1 million to improve prosthetics for soldiers
8. UT Dallas team creates flexible electronics that change shape inside body
9. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
10. Law that regulates shark fishery is too liberal: UBC study
11. New study will help protect vulnerable birds from impacts of climate change
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UT Dallas study reveals effect of loud noises on brain
(Date:9/21/2014)... at the University of California, San Diego, have developed ... that control the activity of genes based on sequences ... from its application to human embryonic cells in a ... 21. , "All of our cells have the same ... said John Whitaker, lead author of the report. "Skin ...
(Date:9/21/2014)... Stanford researchers has developed a protein therapy that disrupts ... from original tumor sites, travel through the blood stream ... , This process, known as metastasis, can cause cancer ... of patients who succumb to cancer fall prey to ... associate professor of bioengineering who describes a new therapeutic ...
(Date:9/19/2014)... biology professor will study multifunctional and specialized spinal ... a National Science Foundation grant in the amount ... Berkowitz, professor in the Department of Biology, OU ... the differences between the multifunctional and specialized spinal ... use and what connections they make. Berkowitz ...
Breaking Biology News(10 mins):Program predicts placement of chemical tags that control gene activity 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 4
... for in his address to the nation last night, Americans ... to both their shareholders and society, according to a new ... The rigorous survey-based nationwide study of U.S. adults aware ... that Republicans, Democrats and Independents strongly agree that the spill ...
... first week after giving birth, up to 70 percent ... While most women recover quickly, up to 13 percent ... clinical-level postpartum depression. Postpartum depression is defined as a ... and is a significant public health problem. Postpartum blues ...
... what the USGS is doing in response to the Deepwater Horizon ... information after a major disaster. Also, learn how the USGS is ... from rivers and streams. You can even go on a pollinator ... Science Picks or any other USGS news, and receive updates via ...
Cached Biology News:Consumer responses to Gulf oil spill reflect Americans' changing corporate expectations 2More than just the baby blues 2More than just the baby blues 3June Science Picks 2June Science Picks 3June Science Picks 4June Science Picks 5June Science Picks 6June Science Picks 7
(Date:9/18/2014)... Bryan-College Station, Texas (PRWEB) September 18, 2014 ... University System Chancellor John Sharp, Texas A&M Health ... from the U.S. Department of Health and Human ... GSK today dedicated a national pandemic influenza vaccine ... will serve as an anchor for the Texas ...
(Date:9/18/2014)... -- Research and Markets has announced the ... Industry Report, 2014-2017" report to their offering. ... can differentiate into specialized cells and can divide (through ... can be applied to treatment of cardiovascular diseases, leukemia ... damage or lesion of liver, kidney and other parenchymal ...
(Date:9/18/2014)... 18, 2014 Research and Markets ... Albumin Industry Report 2014" report to their offering. ... 2014 is a professional and in-depth study on the ... The report provides a basic overview of the ... The human albumin market analysis is provided for the ...
(Date:9/18/2014)... Leatherwood Plastics has selected Vycom’s Flametec ... competitive in the semiconductor, clean room and medical ... product quality and productivity, according to Dwight Leatherwood, ... 1980 in Lewisville, TX, Leatherwood Plastics ... the business. Much of Leatherwood’s equipment building relies ...
Breaking Biology Technology:Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Leatherwood Plastics Selects Vycom’s Flametec PVC-C Material to Stay Competitive in Semiconductor and Lab Equipment Industries 2
... to capture market share during the global push toward ... latest version of its digital mammography workstation in the ... services provider, said the workstation, known commercially as Merge ... workflow and enhance clinical reading capabilities. , ,According to ...
... in three short months! The major stock indices looked pretty ... up steam in the second quarter with the Dow Jones ... eight percent growth for the first half. Not far behind was ... the first quarter and 7% growth for the half year. , ...
... Wis . - Opponents of human embryonic stem-cell research are ... That's like asking a fourth-grader why he doesn't have a ... University of Wisconsin-Madison scientist James Thomson figured out how ... , ,On the opposite extreme, excited proponents of human embryonic ...
Cached Biology Technology:Midwest life science stocks kept sizzling in Q2 2Midwest life science stocks kept sizzling in Q2 3Midwest life science stocks kept sizzling in Q2 4Midwest life science stocks kept sizzling in Q2 5Midwest life science stocks kept sizzling in Q2 6Separating hope from hype in stem-cell research 2Separating hope from hype in stem-cell research 3
... orbital shakers combine high durability and capacity ... triple-counterbalanced heavy-duty mechanism prevents vibration, allowing the ... loads. Every other part, from the large ... thick machined aluminum platform is designed to ...
...
Small bottle for hybridization 150 x 35mm...
Extra Large bottle for hybridization 300 x 70mm...
Biology Products: