Navigation Links
Rewired visual input to sound-processing part of the brain leads to compromised hearing
Date:8/22/2012

ATLANTA Scientists at Georgia State University have found that the ability to hear is lessened when, as a result of injury, a region of the brain responsible for processing sounds receives both visual and auditory inputs.

Yu-Ting Mao, a former graduate student under Sarah L. Pallas, professor of neuroscience, explored how the brain's ability to change, or neuroplasticity, affected the brain's ability to process sounds when both visual and auditory information is sent to the auditory thalamus.

The study was published in the Journal of Neuroscience.

The auditory thalamus is the region of the brain responsible for carrying sound information to the auditory cortex, where sound is processed in detail.

When a person or animal loses input from one of the senses, such as hearing, the region of the brain that processes that information does not become inactive, but instead gets rewired with input from other sensory systems.

In the case of this study, early brain injury resulted in visual inputs into the auditory thalamus, which altered how the auditory cortex processes sounds.

The cortical "map" for discriminating different sound frequencies was significantly disrupted, she explained.

"One of the possible reasons the sound frequency map is so disrupted is that visual responsive neurons are sprinkled here and there, and we also have a lot of single neurons that respond to both light and sound," Pallas said. "So those strange neurons sprinkled there probably keeps the map from forming properly."

Mao also discovered reduced sensitivity and slower responses of neurons in the auditory cortex to sound.

Finally, the neurons in the auditory cortex were less sharply tuned to different frequencies of sound.

"Generally, individual neurons will be pretty sensitive to one sound frequency that we call their 'best frequency,'" Pallas said. "We found that they would respond to a broader r
'/>"/>

Contact: Jeremy Craig
jcraig@gsu.edu
404-413-1357
Georgia State University
Source:Eurekalert

0

GOOD

Page: 1 2

Related medicine news :

1. Strobe eyewear training improves visual memory
2. Study offers new clue on how brain processes visual information
3. UCSB study reveals brain functions during visual searches
4. Dr. Davis Announces Some Diagnoses of ADHD May be Misinterpreted Visual Problems: Could Be Treated with Vision Therapy
5. Hear to see: New method for the treatment of visual field defects
6. UC students design a better pill bottle for the blind and visually impaired
7. Cone beam CT proves better for visualizing some causes of hearing loss at half the radiation dose
8. UCLA/Technion study uncovers brains code for pronouncing vowels
9. Stroke disrupts how brain controls muscle synergies
10. Black Belts Punching Power Linked to Their Brain Structure
11. Neural interface for prosthesis can restore function in motor control brain areas
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... Nashville, TN (PRWEB) May 23, 2013 ... to enhance nurse understanding of the professional role and ... , Roland Joy, vice president of patient care services ... explains, "TAMC nurses are excellent clinicians, and we want ... profession, teach them that to lead they must follow, ...
(Date:5/23/2013)... PhD Box has introduced a ... the research process by offering assistance for Thesis Proposals. The ... of services that the company provides for research consultation in ... dedicated proposal writing service is that this is the stage ... research process find it difficult to draft a proposal as ...
(Date:5/23/2013)... Following the recent outbreak of fake ... the security team at idcloak Technologies has identified a ... or any web-born malware. Gill-Chris Welles of the ... better privacy and security than traditional antivirus ... the best AV software cannot be depended on: it ...
(Date:5/23/2013)... When Teachers Notebook reached out to its teacher ... the Moore, OK tornado victims, they hoped to attract ... be sold for around $10.00 with all proceeds benefiting ... were overwhelmed by the response from these dedicated educators ... the first 12 hours of the campaign. , Later ...
(Date:5/23/2013)... GBI Research’s analysis indicates that the global critical ... number of players accounting for a major proportion of the ... rate between 2006 and 2012, possibly due to the lack ... especially in the US. , GBI Research estimates that ... in 2012, having grown in size at a CAGR of ...
Breaking Medicine News(10 mins):Health News:OnSomble, Inc. Partners with The Aroostook Medical Center to Enhance Nurse Understanding of the Professional Role 2Health News:PhD Box Unveils Proposal Writing Services for Research Scholars 2Health News:Effective virus protection without anti-virus software, identifies idcloak 2Health News:Teachers Rally to Raise Funds for Moore Tornado Victims 2Health News:MarketResearch.com Report – Increased Cost of Albumin was Main Factor for Double-Digit Growth of Global Critical Care Market Between 2006 and 2012 2
... no open choices. But does this also mean no end-of life ... The department of health recently spoke of 60% compliance of ... elderly. ,To research into this lofty claim, a survey ... lives, often die a lonely death. Nearly 50% of the 800 ...
... this bit of news sent you into an instant cardio-vascular ... soil and the rest, who probably don’t engage// in heart ... ill health. This region portraying a high incidence of cardiovascular ... ,A major health initiative is taking shape under the ...
... can be treated in a short time if diagnosed properly. ... Body CT, the ultrasound technology could be used to accurately ... ,One condition that many runners seek treatment for ... the heel, caused by the back of the shoe consistently ...
... weighed less than 1lb 6oz. He was so weak that he ... ensured that he lived and grew stronger. //Even his mother Donna ... had to be given blood transfusions to recover. ,Now ... those who helped them, they are launching a campaign to fill ...
... has said that suicide rates in Sri Lanka has increased in ... yellow oleander plants even for the most trivial reasons. ... all over the island. It has yellow trumpet-like flowers and a ... seed and one of these seeds is enough to kill you, ...
... million Australians have diabetes. New South Wales (NSW) has recorded ... over the past 10 years. Experts have asked the health ... diabetes. Sooner if it continues it is expected that about ... reason for this increase is that of the diet and ...
Cached Medicine News:Health News:Hush…..A Deadly Killer on the Prowl in Rural Andhra Pradesh 2Health News:Proper Diagnosis Could Augment Speedy Recovery Of Haglund’s Syndrom 2Health News:Its High Time the Australian Government Takes Steps against Diabetes 2
(Date:5/22/2013)... , May 22, 2013 Pomerantz ... investigating claims on behalf of investors of Intuitive Surgical, ... ISRG ) (CUSIP: 46120E602) who purchased Intuitive Surgical common ... (the "Class Period"). Such investors are advised to contact ... rswilloughby@pomlaw.com or 888-476-6529, ext. 237. The ...
(Date:5/22/2013)... Minn. , May 22, 2013 /PRNewswire/ ... the successful completion of its global Phase ... an internally developed program for the management ... proprietary formulation technology.  USL255 is specifically engineered ... fluctuations in topiramate blood levels observed with ...
(Date:5/22/2013)... Mass. and TORONTO , ... ) (OTCBB: GNBT) today announced three presentations demonstrating the ... by its wholly-owned subsidiary, Antigen Express, Inc. ( www.antigenexpress.com ... meeting of the American Society of Clinical Oncology (ASCO) ... from May 31 through June 4, 2013. ...
Breaking Medicine Technology:SHAREHOLDER ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Intuitive Surgical, Inc. - ISRG 2Upsher-Smith Successfully Completes Phase III Study Of USL255 (Extended-Release Topiramate) For Adjunctive Treatment Of Epilepsy In Patients With Refractory Partial-Onset Seizures 2Upsher-Smith Successfully Completes Phase III Study Of USL255 (Extended-Release Topiramate) For Adjunctive Treatment Of Epilepsy In Patients With Refractory Partial-Onset Seizures 3Upsher-Smith Successfully Completes Phase III Study Of USL255 (Extended-Release Topiramate) For Adjunctive Treatment Of Epilepsy In Patients With Refractory Partial-Onset Seizures 4Generex Announces ASCO Presentations on the Antigen Express Advanced Stage AE37 Cancer Vaccine 2Generex Announces ASCO Presentations on the Antigen Express Advanced Stage AE37 Cancer Vaccine 3Generex Announces ASCO Presentations on the Antigen Express Advanced Stage AE37 Cancer Vaccine 4
... Apollo Endosurgery, Inc. announced that their newly-launched OverStitch™ ... several, first-in-human cases. ... that mimics the way physicians deploy sutures by hand. ... delivering surgical standard of care through the flexible endoscope. ...
... 28 Danaher Corporation (NYSE: DHR ) announced ... Comas will be presenting at the Goldman Sachs Global Industrials ... at 10:15 a.m. EDT. The company also announced that President ... presenting at the Robert W. Baird Industrial Conference in Chicago, ...
Cached Medicine Technology:Apollo Endosurgery Completes First-in-Human Cases With New OverStitch™ Endoscopic Suturing System 2
Very fine, blunt tip....
... Designed to meet the ... of cardiology practices. The ... attenuation correction accessory features ... array that increases the ...
Stainless steel lancet blade in stainless steel....
In Stainless steel. Available in 1.5, 2.0,3.0 & 3.5 MM...
Medicine Products: