Navigation Links
A better thought-controlled computer cursor
Date:11/18/2012

he traditional methods in neural prosthetics. Much of the existing research in this field has focused on differentiating among individual neurons in the brain. Importantly, such a detailed approach has allowed neuroscientists to create a detailed understanding of the individual neurons that control arm movement.

The individual neuron approach has its drawbacks, Gilja said. "From an engineering perspective, the process of isolating single neurons is difficult, due to minute physical movements between the electrode and nearby neurons, making it error-prone," he said. ReFIT focuses on small groups of neurons instead of single neurons.

By abandoning the single-neuron approach, the team also reaped a surprising benefit: performance longevity. Neural implant systems that are fine-tuned to specific neurons degrade over time. It is a common belief in the field that after six months to a year, they can no longer accurately interpret the brain's intended movement. Gilja said the Stanford system is working very well more than four years later.

"Despite great progress in brain-computer interfaces to control the movement of devices such as prosthetic limbs, we've been left so far with halting, jerky, Etch-a-Sketch-like movements. Dr. Shenoy's study is a big step toward clinically useful brain-machine technology that have faster, smoother, more natural movements," said James Gnadt, PhD, a program director in Systems and Cognitive Neuroscience at the National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health.

For the time being, the team has been focused on improving cursor movement rather than the creation of robotic limbs, but that is not out of the question, Gilja said. Near term, precise, accurate control of a cursor is a simplified task with enormous value for paralyzed people.

"We think we have a good chance of giving them something very useful," he said. The team is now translating the
'/>"/>

Contact: Andrew Myers
admyers@stanford.edu
650-736-2245
Stanford School of Engineering
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. New methods for better purification of wastewater
2. Breakthroughs in Chikungunya research from A*STAR spell new hope for better treatment and protection
3. UNH researchers find African farmers need better climate change data to improve farming practices
4. Giant squids giant eyes: The better to see hungry whales with
5. Improved loblolly pines better for the environment, study finds
6. Fish larvae find the reef by orienting: The earlier the better
7. Intensive kidney dialysis indicates better survival rates than conventional dialysis
8. Modern hybrid corn makes better use of nitrogen, study shows
9. Bigger gorillas better at attracting mates and raising young
10. Better housing conditions for zebrafish could improve research results
11. Better plants for biofuels
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A better thought-controlled computer cursor
(Date:7/10/2014)... , June 27, 2014  Pomerantz LLP has ... Inc. ("Provectus" or the "Company")(NYSE-MKT: PVCT) and certain ... United States District Court, Middle District of ... behalf of a class consisting of all persons ... securities between December 17, 2013 and May 22, ...
(Date:7/10/2014)... Conn. , July 2, 2014 NXT-ID, Inc., (OTCQB: ... reports that CEO Mr. Gino Pereira was interviewed ... show in Tampa Florida . Mr. Pereira ... host Cedric Harris and how the Wocket™ aims ... alternative.  Cedric Harris tells Gino ...
(Date:7/10/2014)... Fingerprint Cards, (FPC,s) new ... (DW). An Asian OEM has selected FPC1021 for a flagship ... August 2014.   FPC is proud to announce ... planned date for start of mass production in August 2014. ... 5M, for delivery in the first half of July. The ...
Breaking Biology News(10 mins):SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4FPC Wins DW and Initial Ramp Order for FPC1021 Touch Sensor for Flagship Smartphone from Asian OEM 2
... a looming water crisis, driven by climate change, growing ... of this issue, the National Science Foundation has selected ... Engineering Research Center (ERC) to address this challenge by ... initial grant is $18.5 million spread over five years, ...
... Scientists at the U.S. Department of Energy,s (DOE) Brookhaven ... the metabolic processes in rapeseed plants - particularly those ... Their goal is to find ways to optimize the ... renewable resources for fuel and industrial chemicals. The ...
... ,(Phoenix ... awarded Robert Garfield, PhD, a researcher at St. Joseph,s Hospital and Medical ... to prevent post-partum hemorrhage. The grant was one of 88 awarded ... help lower the barriers for testing innovative ideas in global health. Phase ...
Cached Biology News:Re-inventing America's urban water infrastructure 2Re-inventing America's urban water infrastructure 3Re-inventing America's urban water infrastructure 4Modeling plant metabolism to optimize oil production 2Modeling plant metabolism to optimize oil production 3
(Date:7/10/2014)... July 10, 2014 Research and Markets ... the "International Photonic Integrated Circuit (Monolithic Integration, ... 2019" report to their offering. ... concept of photonic integration traces its roots in ... promise of photonic integration went unexplored and unfulfilled ...
(Date:7/10/2014)... April 15, 2014 -- According to the International ... nuclear security comes from terrorists acquiring sufficient quantities ... construct a crude nuclear explosive device. The IAEA ... trafficking have involved gram-level quantities, which can be ... According to a new study appearing this week ...
(Date:7/10/2014)... June 17, 2014 Using microscopic polymer light ... gases, researchers at MIT,s Quantum Photonics Laboratory have ... in the parts-per-billion range. Optical sensors are ideal ... high signal-to-noise ratio, compact, lightweight nature, and immunity ... sensors had been developed before, the MIT team ...
(Date:7/10/2014)... psychiatric disorders has been extremely challenging because there are ... insufficient to cause disease. Now investigators reporting in the ... Cell Stem Cell describe a strategy that may ... other risk factors or environmental exposures to affect the ... genetic variant that may predispose individuals to schizophrenia. ...
Breaking Biology Technology:International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Sensitive detection method may help impede illicit nuclear trafficking 2Swell new sensors 2New strategy could uncover genes at the root of psychiatric illnesses 2
... 11 Idenix Pharmaceuticals, Inc., (Nasdaq: IDIX ... results for the fourth quarter of 2008 on Tuesday, ... conjunction with the issuance of the press release, Idenix ... ET on Tuesday, February 17, 2009 to discuss the ...
... XTL,Biopharmaceuticals Ltd. (Nasdaq: XTLB ; TASE: ... Shweiger have been appointed to XTL,s Board of,Directors, effective ... assuming,the role of Co-Chief Executive Officer, with no remuneration, ... Ron Bentsur, Co-Chief Executive Officer ...
... Victhom Human Bionics Inc., "Victhom" (TSX: VHB), announced today ... and treatment of a physiological disorder that most likely ... seizure. , Victhom has recently filed a patent application ... sudden unexpected death in epilepsy (SUDEP) using its neuromodulation ...
Cached Biology Technology:XTL Biopharmaceuticals Announces Appointment of David Grossman and Boaz Shweiger to Board of Directors 2XTL Biopharmaceuticals Announces Appointment of David Grossman and Boaz Shweiger to Board of Directors 3Victhom announces the filing of a patent application to address sudden unexplained death in epilepsy (SUDEP) 2Victhom announces the filing of a patent application to address sudden unexplained death in epilepsy (SUDEP) 3
Takara's Mutan-Super Express Km Kit is designed to achieve site-directed mutagenesis in just one day. It is based on Oligonucleotide-directed Dual Amber (ODA) method, using the advantages of LA (Long...
... TriEx Sf9 Cells and TriEx Insect ... from pTriEx baculovirus constructs. This cell/medium combination ... cell growth and high protein expression levels ... pTriEx-1.14 vectors. Please note that our Ready-Plaque ...
...
...
Biology Products: