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

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:10/1/2014)... D.C. and ATLANTA (PRWEB) October 01, 2014 ... information security executive networking and relationship-marketing firm, ... 2014 Information Security Executive® and Project of ... include top-ranking decision makers representing organizations in ... academics. Projects include large-scale technology endeavors that ...
(Date:10/1/2014)... (PRWEB) October 01, 2014 Beverly Hills ... Kathleen Mojas is celebrating 20 years of private practice ... hundreds of people to achieve greater joy and fulfillment ... list of warning signs and suggestions for anyone who ... Mojas explains: “Believe it or not, it’s not ...
(Date:10/1/2014)... Inc., announced today their new NoteSwift™ 2.0 for Allscripts ... the bridge between the EHR and Dragon Medical interpreting ... at the point of care. NoteSwift reduces the time ... than half – and virtually eliminates mouse clicks – ... EHR use according to the June 12, 2014 HIMSS ...
(Date:10/1/2014)... the occasion of the Leishmaniasis East Africa Platform ... international leishmaniasis experts, results of a pharmacovigilance ... plan, carried out by MSF, DNDi, and national ... presented to key decision makers in order to ... the combination of Sodium Stibogluconate and Paromomycin (SSG&PM) ...
(Date:10/1/2014)... 01, 2014 Dr. Saj Jivraj, one ... prosthodontists, is traveling to Chennai, India, tomorrow to speak ... 2 and 3. , Dr. Jivraj is founder of ... Oxnard, Calif., and one of the world’s foremost prosthodontists, ... replacement. He is speaking to the Indian Society of ...
Breaking Medicine News(10 mins):Health News:T.E.N. Announces Nominees for the 2014 ISE® North America Awards; People’s Choice Award voting now open to industry at large 2Health News:T.E.N. Announces Nominees for the 2014 ISE® North America Awards; People’s Choice Award voting now open to industry at large 3Health News:T.E.N. Announces Nominees for the 2014 ISE® North America Awards; People’s Choice Award voting now open to industry at large 4Health News:T.E.N. Announces Nominees for the 2014 ISE® North America Awards; People’s Choice Award voting now open to industry at large 5Health News:T.E.N. Announces Nominees for the 2014 ISE® North America Awards; People’s Choice Award voting now open to industry at large 6Health News:T.E.N. Announces Nominees for the 2014 ISE® North America Awards; People’s Choice Award voting now open to industry at large 7Health News:Prominent Beverly Hills Psychologist Dr. Kathleen Mojas Celebrating 20 Years in Private Practice Identifies Common Warning Signs That You May Be In a Toxic Relationship. 2Health News:Prominent Beverly Hills Psychologist Dr. Kathleen Mojas Celebrating 20 Years in Private Practice Identifies Common Warning Signs That You May Be In a Toxic Relationship. 3Health News:NoteSwift Joins Allscripts Developer Program 2Health News:NoteSwift Joins Allscripts Developer Program 3Health News:Results of large-scale roll out of combination treatment for kala-azar in Eastern Africa 2Health News:One of Woodland Hills’ Top Cosmetic Dentists Speaking to Indian Society of Oral Implantologists Tomorrow 2Health News:One of Woodland Hills’ Top Cosmetic Dentists Speaking to Indian Society of Oral Implantologists Tomorrow 3Health News:One of Woodland Hills’ Top Cosmetic Dentists Speaking to Indian Society of Oral Implantologists Tomorrow 4Health News:One of Woodland Hills’ Top Cosmetic Dentists Speaking to Indian Society of Oral Implantologists Tomorrow 5
... scientists assumed that the adult heart is unable to ... Center for Molecular Medicine (MDC) Berlin-Buch and the Charit ... that this dogma no longer holds true. Dr. Laura ... able to show that the body`s own heart muscle ...
... Free Bench-Top Flow Cytometer System Twice Yearly to Support Innovative ... , -Learn More about the Revolutionary ... Biology Annual Meeting- , , ... life sciences company developing revolutionary bench-top flow cytometer systems, today ...
... LLP today announced,that, effective January 1, 2009, it ... and regulation practice. MARC Associates are experts in ... distinguished client base.,Other areas of expertise include energy ... "We have been ...
... age of 100 and never looking a day over 60 is now ... now, this information is available to everyone absolutely free. , ... ... Health News Report is offering a free download to the popular book ...
... hemodynamic monitor (IHM) may help to guide medical treatment ... with diastolic heart failure (DHF), reports a study in ... http://www.onlinejcf.com/ ), published by Elsevier. , Led by Michael ... Charleston, the researchers analyzed data on DHF patients enrolled ...
... Dec. 11 Perot Systems Corporation,(NYSE: ... the Daughters,of Charity Health System (DCHS) has awarded ... Under terms of the agreement, Perot Systems will ... application implementation and,support, desktop support, local and wide ...
Cached Medicine News:Health News:Heart regenerates after infarction -- first trials with mice 2Health News:Researcher Receives Free Flow Cytometer System as First Winner of Accuri(R) Flow Cytometer Creativity Awards Program 2Health News:Researcher Receives Free Flow Cytometer System as First Winner of Accuri(R) Flow Cytometer Creativity Awards Program 3Health News:Researcher Receives Free Flow Cytometer System as First Winner of Accuri(R) Flow Cytometer Creativity Awards Program 4Health News:Holland & Knight Welcomes MARC Associates - Experts in Health Care and Intergovernmental Policy - to the Firm's Public Policy & Regulation Practice 2Health News:Holland & Knight Welcomes MARC Associates - Experts in Health Care and Intergovernmental Policy - to the Firm's Public Policy & Regulation Practice 3Health News:Holland & Knight Welcomes MARC Associates - Experts in Health Care and Intergovernmental Policy - to the Firm's Public Policy & Regulation Practice 4Health News: Anti-Aging Miracle Physicians Have Been Waiting for is Finally Here : Free Book Available From Natural Health News Report Reveals the Secret to Staying Young 2Health News:Implantable monitor may help in managing diastolic heart failure 2Health News:Perot Systems Awarded Contract Extension By Daughters of Charity 2Health News:Perot Systems Awarded Contract Extension By Daughters of Charity 3
(Date:10/1/2014)... Oct. 1, 2014 Ardelyx, Inc. ... biopharmaceutical company focused on cardio-renal, gastrointestinal and ... its 371 patient Phase 2b clinical trial ... bowel syndrome (IBS-C).  Results from this study ... in IBS-C symptoms for tenapanor-treated patients compared ...
(Date:10/1/2014)... Suisse, October 1, 2014 ... dans le domaine de l,analyse des données issues ... une solution de diagnostic in vitro (IVD) du ... complète de la mucoviscidose dans un seul essai ... caractériser tous les types de variantes par l,intermédiaire ...
(Date:9/30/2014)... health and safety of Canadians is our government,s highest priority.  Our ... at its disposal to help ensure that the drugs Canadians need ... end, Health Canada has taken decisive ... of all drug products from three plants in ... Pharmachem India Pvt Ltd , Apotex Research Private Limited ...
Breaking Medicine Technology:Ardelyx Reports Positive Results from Its Phase 2b Clinical Trial Evaluating Tenapanor in IBS-C Patients 2Ardelyx Reports Positive Results from Its Phase 2b Clinical Trial Evaluating Tenapanor in IBS-C Patients 3Ardelyx Reports Positive Results from Its Phase 2b Clinical Trial Evaluating Tenapanor in IBS-C Patients 4Ardelyx Reports Positive Results from Its Phase 2b Clinical Trial Evaluating Tenapanor in IBS-C Patients 5Ardelyx Reports Positive Results from Its Phase 2b Clinical Trial Evaluating Tenapanor in IBS-C Patients 6Sophia Genetics lance une analyse complète du gène CFTR dans un essai clinique SGN 2Sophia Genetics lance une analyse complète du gène CFTR dans un essai clinique SGN 3Statement by the Honourable Rona Ambrose on the import ban of drug products from three plants in India 2
This standard tying forcep is curved with 5mm titanium coated platforms. Length 85 mm....
Catalano curved tying forcep has 6 mm V-grove tying platform. Overall length 100 mm....
Kelman - McPherson tying forceps with serrated handle, platform 4 mm and overall length of 85 mm....
Troutman tying forceps are curved, delicate, bullet shape, with tying platforms. Flat pattern. Ultra fine platforms ideal for 10-0 or 11-0 suture material. Platforms fully meet to hold suture firmly....
Medicine Products: