Navigation Links
Mind-Controlled Prosthetic Hand Could Be Breakthrough

MONDAY, Dec. 17 (HealthDay News) -- A robotic hand that's controlled by the thoughts of a woman who is paralyzed from the neck down provides her with an amount of control and movement never before achieved in this type of artificial limb, say the scientists who developed it.

The woman's prosthetic hand functions nearly the same as a normal hand, according to the University of Pittsburgh team.

The 52-year-old patient had been diagnosed with a degenerative brain and spinal disease 13 years earlier and eventually became unable to move her arms and legs. In February 2012, the researchers implanted two microelectrode arrays into the woman's left motor cortex.

A microelectrode array is a device that connects brain cells (neurons) to electronic circuitry. The motor cortex is the part of the brain that initiates movement.

The microelectrode arrays in the woman's brain were connected to the robotic hand. She then underwent 14 weeks of training to learn how to use the artificial hand, according to an article published online Dec. 17 in The Lancet.

By the second day of training, the woman was able to move the hand freely without the aid of a computer. Over time, she was able to complete more than 91 percent of tasks meant to assess her ability to control the hand, and did the tasks more than 30 seconds quicker than at the start of the training.

The patient's rapid adaptation to the robotic hand was party due to a new way of connecting her brain to the hand, explained study author Andrew Schwartz.

"In developing mind-controlled prosthetics, one of the biggest challenges has always been how to translate brain signals that indicate limb movement into computer signals that can reliably and accurately control a robotic prosthesis. Most mind-controlled prosthetics have achieved this by an algorithm which involves working through a complex 'library' of computer-brain connections," he said in a journal news release.

"However, we've taken a completely different approach here, by using a model-based computer algorithm which closely mimics the way that an unimpaired brain controls limb movement. The result is a prosthetic hand which can be moved far more accurately and naturalistically than previous efforts," Schwartz explained.

This "brain-machine interface is a remarkable technological and biomedical achievement," said Gregoire Courtine, of the Swiss Federal Institute of Technology Lausanne, who wrote an accompanying editorial.

More information

The Society for Neuroscience has more about brain-controlled prosthetics.

-- Robert Preidt

SOURCE: The Lancet, news release, Dec. 16, 2012

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New IDSA guidelines aim to reduce death, disability, and cost of prosthetic joint infections
2. New metric to track prosthetic arm progress
3. Prosthetic retina offers simple solution to restoring sight
4. Student-athletes could lose eligibility, scholarships with tweet missteps, Baylor research shows
5. Study shows antidepressant could do double duty as diabetes drug
6. A finding that could help Alpha-1 sufferers breathe more easily
7. Discovery in Ghent could improve screening for sudden cardiac death
8. Capturing circulating cancer cells could provide insights into how disease spreads
9. Porcupine Quill Could Foster New Medical Devices
10. Glaucoma study could inspire e-reader apps
11. Public ecology could help resolve mountaintop mining issues
Post Your Comments:
Related Image:
Mind-Controlled Prosthetic Hand Could Be Breakthrough
(Date:6/26/2016)... (PRWEB) , ... June 26, 2016 , ... On June ... sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table in Battle Creek, ... of the city’s history as home to some of the world’s leading providers of ...
(Date:6/26/2016)... ... ... blind and certified personal trainer is helping to develop a weight loss fitness plan that ... the two major problems leading the fitness industry today:, , All ... They don’t eliminate all the reasons people quit their exercise program , ...
(Date:6/25/2016)... , ... June 25, 2016 , ... Austin residents seeking ... American College of Mohs Surgery and to Dr. Russell Peckham for medical and surgical ... effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by ...
(Date:6/25/2016)... ... 25, 2016 , ... First Choice Emergency Room , the largest network ... the Medical Director of its new Mesquite-Samuell Farm facility. , “We are pleased ... location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. ...
(Date:6/25/2016)... ... , ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department ... in recognition of their exemplary accomplishments in worksite health promotion. , The Wellness at ... Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire was one of 42 ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)...  Collagen Matrix, Inc., ("Collagen Matrix") the driving ... collagen and mineral based medical devices for tissue ... Messer has joined the company as Vice ... growing portfolio of oral surgery, neurosurgery, orthopaedic and ... the Collagen Matrix executive team as an accomplished ...
(Date:6/24/2016)... , June 24, 2016   Bay ... Rehabilitation Network,s Dean Center for Tick Borne ... Medicine and Rehabilitation, MIT Hacking Medicine, University of ... Innovation, today announced the five finalists of ... Lyme disease.  More than 100 scientists, clinicians, researchers, ...
(Date:6/24/2016)... , June 24, 2016 ... of the "Structural Electronics 2015-2025: Applications, Technologies, ... In-Mold Electronics, Smart Skin, ... Photovoltaics Structural electronics involves electronic ... load-bearing, protective structures, replacing dumb structures such as ...
Breaking Medicine Technology: