Navigation Links
Virginia Tech researcher seeks to use electrical stimulation to give voice to stroke patients
Date:3/4/2011

olds can result in reinnervating the muscle, which also affects breathing and swallowing and other functions. The folds close and open almost like eye lids to create or release air pressure that vibrates the vocal chords, and makes sound. If one of the flaps is unable to close, no pressure, hence no sound, can be created. In many cases, be it from a stroke or injury, one of the folds is affected by paralysis, Leonessa said.

During the five-year study, Leonessa and his graduate student research team will work with doctors at the Center for Voice and Swallowing Disorders (http://www.wfubmc.edu/Center-for-Voice-and-Swallowing-Disorders/), part of Wake Forrest University's Baptist Medical Center in North Carolina. There, patients with paralyzed vocal folds will undergo electrical stimulation tests to see if small shocks can reinvigorate their ability to talk through forced contraction.

The effort has several challenges: Muscles are highly nonlinear and have time-varying characteristics, depending on the patient. Further, a stimulated muscle changes when fatigue occurs and individual muscle models are different. Even more challenging is the fact that there is a significant delay between stimulation and muscle contraction, adding to the processing and transmission delays in the electrical stimulation system.

Leonessa plans to develop a portable, noninvasive device that can be adjusted to each patient. The device itself would be no larger than an iPod, clipped to the belt, and have small wires leading to a patch over the patient's throat. An Atlanta-based tech company will help develop the device, which will come later in the five-year study if the use of electrical stimulation on the vocal folds holds promise for muscle and nerve rejuvenation.

"Breathing and swallowing have received much attention for patients with vocal fold paralysis, but vocalization is still considered an open problem with unresolved issues due to the complexity
'/>"/>

Contact: Steven Mackay
smackay@vt.edu
540-231-4787
Virginia Tech
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Virginia Tech shares in grant to study effects of climate change on southern pine forests
2. Virginia Tech engineer identifies new concerns for antibiotic resistance, pollution
3. Virginia Tech engineers introduce thermotherapy as a chemotherapy alternative
4. USDA awards Virginia Tech $3.8 million to stimulate eastern US wine industry
5. Virginia Tech studies impact of Gulf oil spill on plovers
6. Government agencies fund improved fuel economy research at Virginia Tech
7. Industry to Demonstrate Off-the-Shelf Integrated Force Protection and Counter-Terrorism Solutions at Northern Virginia Site
8. Virginia Techs Mueller receives friendship award from China
9. Industry to Demonstrate Off-the-Shelf Integrated Force Protection and Counter-Terrorism Solutions at Northern Virginia Site
10. NSF funds Virginia Tech program to train researchers at intersection of engineering, biology
11. Major Force Protection and Anti-Terrorist Equipment Demonstration Set for Next May 17-19 in Northern Virginia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/18/2015)... GOTHENBURG, Sweden , May 18, 2015 ... touch fingerprint sensors FPC1020, FPC1025, FPC1145, FPC1155 and FPC1035 from ... place from June until and including Q3 2015 and the ... Asia . Communicated order values for 2015 hereby amount ... revenues for Q1 2015 of 140 MSEK and a number ...
(Date:5/11/2015)... JOSE, Calif. , May 11, 2015 /PRNewswire/ ... developer of human interface solutions, today announced the ... Vice President and Chief Financial Officer, reporting to ... Ali replaces Synaptics, current Chief Financial Officer, ... December 2014. Mr. Ali brings ...
(Date:5/10/2015)... Fingerprint Cards (FPC) has received an order for ... World Peace Industrial Group (WPI), part of WPG Holdings. WPI ... . Deliveries are planned to take place during Q3 2015 ... China . The order value of 235 ... 1 000 MSEK for 2015.   Jörgen Lantto, acting ...
Breaking Biology News(10 mins):Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 235 Million 2
... release is available in German . , ... the 2009 Charles Rodolphe Brupbacher Prize for Cancer Research. Nubia ... tumours such as cervical cancer through human papilloma viruses and ... smoking. The prize from the Charles Rodolphe Brupbacher Foundation has ...
... available in German . The use of ... risk that people may come into contact with it, and ... risk. However, radioactivity is not the only problem related to ... more dangerous to human health. Researchers are still looking for ...
... 2009 An international conference that will explore Darwin,s ... May 25-29. It is being organized to coincide with ... the Origin of Species, (and the 200th anniversaryspecifically, todayof ... of biology," says Ralph Pudritz, director of McMaster,s Origins ...
Cached Biology News:Brupbacher prize to Nubia Munoz and Sir Richard Peto 2Brupbacher prize to Nubia Munoz and Sir Richard Peto 3A pocketful of uranium 2
(Date:5/28/2015)... 27, 2015 Research and Markets( http://www.researchandmarkets.com/research/l9dqwt/animal_genetics ) ... Market by Products, by Testing services - Global Forecast ... The global animal genetics market is estimated to be ... a CAGR of 8-9% during the forecast period of ... driven by increasing animal protein consumption, increasing adoption of ...
(Date:5/28/2015)... 2015 Celsion Corporation (the "Company") (NASDAQ: ... from two institutional healthcare investors to purchase an aggregate ... in an at-the-market registered direct offering and a concurrent ... The Company entered into a definitive purchase agreement ... to sell an aggregate of 3,000,000 shares of its ...
(Date:5/28/2015)... BRUNSWICK, N.J. , May 28, 2015 /PRNewswire/ ... PDS0101, a cancer immunotherapy treatment targeting HPV-16, has ... Currently, pre-cervical cancer is treated ... offer a simple and effective non-surgical alternative. Results ... defense mechanisms (T-cells) to recognize, target, and kill ...
(Date:5/28/2015)... May 28, 2015 CD-adapco, the ... Engineering software, announced today it is joining the ... will provide state-of-the-art engineering simulation tools for analyzing ... expertise and experiences in analyzing particle flow that ... and advance the understanding of flow modeling solutions. ...
Breaking Biology Technology:Global Animal Genetics (Canine, Equine, Poultry, Porcine, Bovine, and Genetic Material) Market 2015 - Global Forecast to 2020 2Celsion Corporation Announces $8 Million At-The-Market Registered Direct Offering 2Celsion Corporation Announces $8 Million At-The-Market Registered Direct Offering 3PDS Biotechnology reports positive Phase I clinical trial results in proprietary HPV-Cancer Immunotherapy 2CD-adapco and PSRI Chartering New Course in Particle Flow Simulations 2
... Oct. 21 /PRNewswire-FirstCall/ - SemBioSys Genetics Inc. ("SemBioSys") ... entered into a definitive agreement to acquire all ... Specialty Ingredients Inc. ("Botaneco") held by SemBioSys and ... an initial 9.48 percent shareholding in Advitech, in ...
... BEIJING, Oct. 20, 2009 Monsanto Company and Huazhong ... the development of novel traits such as higher yield, ... and advance certain technologies developed by Professor Qifa Zhang,s ... "We,re excited to be working with a prominent research ...
... 20 NuVasive, Inc. (Nasdaq: NUVA ... minimally disruptive surgical treatments for the spine, announced today financial ... reported third quarter revenue of $94.9 million, a 41.8% increase ... a 7.3% increase over the $88.5 million for the second ...
Cached Biology Technology:SemBioSys provides an update on Botaneco 2SemBioSys provides an update on Botaneco 3SemBioSys provides an update on Botaneco 4Monsanto and Huazhong Agricultural University Enter Into Collaboration Focusing on Development of Plant Biotechnology 2Monsanto and Huazhong Agricultural University Enter Into Collaboration Focusing on Development of Plant Biotechnology 3NuVasive Reports Third Quarter 2009 Financial Results 2NuVasive Reports Third Quarter 2009 Financial Results 3NuVasive Reports Third Quarter 2009 Financial Results 4NuVasive Reports Third Quarter 2009 Financial Results 5NuVasive Reports Third Quarter 2009 Financial Results 6NuVasive Reports Third Quarter 2009 Financial Results 7NuVasive Reports Third Quarter 2009 Financial Results 8NuVasive Reports Third Quarter 2009 Financial Results 9NuVasive Reports Third Quarter 2009 Financial Results 10NuVasive Reports Third Quarter 2009 Financial Results 11NuVasive Reports Third Quarter 2009 Financial Results 12
... the consumable measurement plate for ... individually controlled measurement sites. Each ... liquid flow channel system that ... solution and compound applications necessary ...
... capable of dynamic scheduling, is designed to ... automation workcells easy for lab personnel, yet ... • Users create methods by ... can build a flowchart, you can write ...
... research demands continue to grow, the need ... information has become necessary, especially when discerning ... The innovative C1si Confocal Microscope System gives ... spectral capability not available in conventional confocal ...
... provides complete components including positive and ... of DNA fragmentation in cultured cells ... BrdU in the procedure provides greater ... Results can be analyzed by fluorescence ...
Biology Products: