Navigation Links
Practice makes perfect -- motor memory possible for neuroprosthetic control
Date:7/20/2009

that the brain is capable of creating a stable, mental representation of a disembodied device so that it can be controlled with little effort.

To demonstrate this, Carmena and Karunesh Ganguly, a post-doctoral fellow in Carmena's laboratory, used a mathematical model, or "decoder." The decoder, analogous to a simplified spinal cord, translated the signals from the brain's motor cortex into movement of the cursor.

It took about four to five days of practice for the monkeys to master precise control of the cursor. Once they did, they completed the task easily and quickly for the next two weeks.

As the tasks were being completed, the researchers were able to monitor the changes in activity of individual neurons involved in controlling the cursor. They could tell which cells were active when the cursor moved in specific directions. The researchers noticed that when the animals became proficient at the task, the neural patterns involved in the "solution" stabilized.

There are three major features scientists associate with motor memory; stability once a motor memory is consolidated it is difficult to change, rapid recall upon demand, and resistance to interference when new skills are learned. All three elements were demonstrated by the macaques in the UC Berkeley study.

To test resistance to interference, the researchers presented a new decoder marked by a different colored cursor two weeks after the monkeys showed mastery of the first decoder.

As the monkeys were mastering the second decoder, the researchers would suddenly switch back to the original decoder and saw that the monkeys could immediately perform the task without missing a beat. The ability to switch back and forth between the two decoders shows a level of neural plasticity never before associated with the control of a prosthetic device.

"This is a study that says that maybe one day, we can really think of the ultimate neuroprosthetic d
'/>"/>

Contact: Elliot Page
press@plos.org
Public Library of Science
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Boydens Summit Practice Featured in the September Issue of New Jersey Business Magazine
2. Parexel Consulting Strengthens Good Manufacturing Practice Capabilities in Europe
3. Campbell Alliance Managed Markets Practice to Take Leadership Role at CBIs Formulary and Reimbursement Conference
4. Campbell Alliance Business Development Practice to Moderate Two Workshops at LES Annual Meeting in Vancouver
5. Campbell Alliance Launches New Practice Area Focused on Trade and Distribution
6. Pioneer in Reproductive Medicine Opens The Countrys First Comprehensive Fertility Practice
7. ABCs Private Practice Inaccurately Portrays Serious Womens Health Condition
8. Campbell Alliance Trade and Distribution Practice to Chair CBI 3rd Annual Fee for Service and EDI Data Management Conference
9. Physicians Practice, Loma Linda Partner to Improve Patient Care in Southern California
10. Campbell Alliance Brand Management Practice to Discuss Managing Launch Logistics at the EyeForPharma Oncology Summit
11. Campbell Alliance Brand Management and Managed Markets Practices to Speak at CBIs Early Commercialization Conference
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/13/2014)... 13, 2014 2014 Deep Research Report ... professional and in-depth study on the current state of ... The report provides a basic overview of the industry, ... analysis and Chinese domestic market analysis are provided with ... of the market. A comparison between the international and ...
(Date:7/11/2014)... , Not for release, publication or distribution (in whole ... to do so would constitute a violation of the relevant ... the "Company") (LSE: SHP, NASDAQ: SHPG ) notes ... a meeting with representatives of AbbVie. This statement ... approval of AbbVie. A further update will be ...
(Date:7/11/2014)... -- EPFL and the University of  Geneva ... John P. Donoghue . The American neuroscientist is to ... The new Wyss Center for Bio- and ... , has named as its director one of ... , founder of Brown University,s Institute for Brain Science, ...
(Date:7/11/2014)... 11, 2014 Cayenne Medical, Inc., ... in the soft tissue reconstruction segment, announced the ... for surgeries involving the shoulder and extremities. The ... novel, inserter-controlled deployment method. The unique delivery eliminates ... anchor pull-out, or anchor displacement (also commonly know ...
Breaking Biology Technology:2014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 22014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 3Shire plc - Statement re: Media Speculation 2John P. Donoghue is Taking the Lead at the Wyss Center and is Appointed Professor at EPFL and University of Geneva 2John P. Donoghue is Taking the Lead at the Wyss Center and is Appointed Professor at EPFL and University of Geneva 3Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3
... Chromatography and Mass Spectrometry Application Report , ... Shieh, Thermo Electron Corporation, San Jose, CA , ... Use of LC/MS n has experienced a dramatic ... screening to ADME/Tox studies. The Finnigan LCQ series ion trap mass spectrometers ...
... , Larry Simonson and Lynn ... Life Sciences Inc, Applications Laboratory, Hopkinton, Massachusetts, USA , ... Initially, work in 96 well microplates was commonly ... of plate processing has grown, automated liquid handling has become a ...
... Geoffrey Grove, Susan Ryan and Ed Alderman ... Technology Department, Caliper Life Sciences, Inc., Hopkinton, MA 01748 , ... The High Volume Head is one of four ... The architecture of the device includes an array of 96 pistons, which ...
Cached Biology Technology:Use of On-line Size Exclusion Chromatography (SEC) for Sample Clean-up in LC/MS Analyses 2Use of On-line Size Exclusion Chromatography (SEC) for Sample Clean-up in LC/MS Analyses 3Use of On-line Size Exclusion Chromatography (SEC) for Sample Clean-up in LC/MS Analyses 4384 Well Pipetting Precision and Accuracy Testing Using the Sciclone Advanced Liquid Handler 2384 Well Pipetting Precision and Accuracy Testing Using the Sciclone Advanced Liquid Handler 3384 Well Pipetting Precision and Accuracy Testing Using the Sciclone Advanced Liquid Handler 4Sciclone ALH 3000 Liquid Handler: Functional Characterization of the High Volume Head - Part 1: Plate-to-Plate Precision Testing 2Sciclone ALH 3000 Liquid Handler: Functional Characterization of the High Volume Head - Part 1: Plate-to-Plate Precision Testing 3Sciclone ALH 3000 Liquid Handler: Functional Characterization of the High Volume Head - Part 1: Plate-to-Plate Precision Testing 4Sciclone ALH 3000 Liquid Handler: Functional Characterization of the High Volume Head - Part 1: Plate-to-Plate Precision Testing 5Sciclone ALH 3000 Liquid Handler: Functional Characterization of the High Volume Head - Part 1: Plate-to-Plate Precision Testing 6
(Date:7/10/2014)... in New Mexico, nearly every public golf course is ... potable water supplies. Across the U.S. Southwest as a ... treated effluent. Reusing the effluent increases the sustainability of ... alike fertilize their lawns during the growing season. The ... State University turfgrass expert has a new vision for ...
(Date:7/10/2014)... June 27, 2014  Pomerantz LLP has filed ... ("Provectus" or the "Company")(NYSE-MKT: PVCT) and certain of ... States District Court, Middle District of ... of a class consisting of all persons or ... between December 17, 2013 and May 22, 2014, ...
(Date:7/10/2014)... SPRINGS, Florida , July 1, 2014 ... wallets pave way for convenience and improved security: NXT-ID, Inc. ... Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... and MasterCard Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: NXTD) ... is pleased to announce that the second series of 30 ...
Breaking Biology News(10 mins):'Tailored' water -- the latest in lawn care 2SHAREHOLDER 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 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5
... The old balkanized approach to ocean management, in which ... and administered by different agencies, has failed to protect ... panel of international scientists says, and should be replaced ... The panel, organized by scientists from Duke University, ...
... new and cleaner ways to meet the country,s energy ... new fuel source. The approach has the potential to ... contributing to rural economic development and lowering greenhouse emissions. ... volumes of diesel and jet transportation fuels. One of ...
... new paper by researchers at George Mason University and the ... between the diversity of organisms at the bottom of the ... Mark D. Uhen, a geologist at Mason, says that ... of whale species living at any given time period correlates ...
Cached Biology News:Marine spatial planning: A more balanced approach to ocean management 2Marine spatial planning: A more balanced approach to ocean management 3Marine spatial planning: A more balanced approach to ocean management 4Fueling the future with fish tank residue: Sandia scientist discusses use of algae as a biofuel 2Fueling the future with fish tank residue: Sandia scientist discusses use of algae as a biofuel 3Fueling the future with fish tank residue: Sandia scientist discusses use of algae as a biofuel 4New study finds link between marine algae and whale diversity over time 2
... CLS number is a new ... match Cornings product number. If ... order under the old Sigma-Aldrich ... service for assistance. ID clarifier: ...
... other fluid sources for 8 vessels while ... each individual pump is controlled electronically. Both, ... maintained. ,High-precision controlled miniature pumps can ... allows flow rates between 0 and 420 ...
The Mu-End™ Protein Truncation Kit provides a convenient method for generating a library of N-terminal and C-terminal protein deletions that can be expressed in E. coli....
... The loxP-amp-loxP cassette is ... cells. The prokaryotic promoter gb2 driving ... slightly modified version of the Em7 promoter. ... generally used Tn5 promoter. A synthetic polyadenylation ...
Biology Products: