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:3/26/2015)... and CINCINNATI , March ... (LSE: SHP, NASDAQ: SHPG ) and Cincinnati ... broad research collaboration for rare diseases. The goal of ... therapies to treat rare diseases with high unmet ... with Cincinnati Children,s research expertise. As a nationally ...
(Date:3/26/2015)... Ale Gicqueau, Founder and President of Clinovo, ... at Align Technology, on “ Conducting Postmarket Registries - ... Global Conference and Exhibition on April 25th through April ... the poster presentation, Ale Gicqueau and Victor Chen will ... Registry, the requirements and resources to conduct the registry, ...
(Date:3/25/2015)... Optimal Research, LLC has been nominated as ... "Best Clinical Site or Trial Network". This ... selected as a nominee in this ViE award category ... distinction in 2014. The ViE awards were created to ... positive contributions of companies and individuals in the vaccine ...
(Date:3/25/2015)... CAMBRIDGE, Mass. and REYKJAVIK, ... which provides comprehensive capabilities for using the genome to create ... their publication of the largest studies of whole-genome data yet ... in Nature Genetics – are built ... variation, authored by a team of deCODE scientists led by ...
Breaking Biology Technology:Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 2Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 3Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 4Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 5Clinovo Presents at ACRP 2015 in Salt Lake City, Utah on April 25th-28th 2Clinovo Presents at ACRP 2015 in Salt Lake City, Utah on April 25th-28th 3Optimal Research Nominated 2015 Vaccine Industry Excellence (ViE) Award 2Landmark deCODE Studies Demonstrate the Power of Truly Big Genomics for Improving Medicine Worldwide 2
... BioSpace , the leading life sciences employment and news ... marking the 7th edition. (Logo: ... organizations across the northwestern United States and western Canada. ... printed campaign map that is promoted online ...
... 2011 Funds Will be Used ... System Designed to Drive the Widespread Adoption of ... Fight Against Infectious Disease Biocartis, a ... systems designed to drive the widespread adoption of ...
... InspireMD, Inc. (OTC BB: NSPR) ("Inspire" or the "Company"), ... commercialization of its proprietary stent platform technology, today announced ... the Company,s board of directors and the former Chairman, ... Chairman of InspireMD,s Board of Directors, effective immediately. InspireMD ...
Cached Biology Technology:BioSpace Spotlights Northwest's Life Science Community 2Biocartis Completes EUR 71 Million (USD 100 Million) Series C Fund Raising 2Biocartis Completes EUR 71 Million (USD 100 Million) Series C Fund Raising 3Biocartis Completes EUR 71 Million (USD 100 Million) Series C Fund Raising 4InspireMD Elects Sol J. Barer, Ph.D. Chairman of the Board of Directors 2InspireMD Elects Sol J. Barer, Ph.D. Chairman of the Board of Directors 3
(Date:3/20/2015)... Markets ( http://www.researchandmarkets.com/research/vkzvcs/iris_biometrics ) has announced the addition ... report to their offering. This report analyzes ... report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... . Annual estimates and forecasts are provided for ...
(Date:3/17/2015)... March 17, 2015 Emotient, the leader ... today announced general availability of Emotient Analytics ... the analysis of facial expressions. The system analyzes ... content, products and services. It delivers audience response ... sentiment - as derived from facial evidence of ...
(Date:3/12/2015)... WINSTON-SALEM, N.C. , March 12, 2015 ... afternoon at Brenner Children,s Hospital, part of Wake Forest ... an outreach initiative for the 2015 ACC Men,s Basketball ... taking pictures with them and getting their autographs. ... Wake Forest Baptist. It is the only children,s hospital ...
Breaking Biology News(10 mins):Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... poisonous ― but it might be used as an ... Tel Aviv University researcher claims. Prof. ... Sciences is investigating new ways for developing a novel ... of scorpions. These compounds have gone through millions of ...
... Bridget (Birgitta) of Sweden that has been kept in a ... study conducted at Uppsala University reveals that the two skulls, ... (Katarina), is not from maternally related individuals. Furthermore, dating show ... Bridget and Catherine lived. The findings are published in the ...
... will greatly benefit the U.S., say scientists in an ... of America (ESA), the nation,s largest organization of ecological ... and economic benefits of biofuel production, U.S. policies need ... ecosystems. In the report, scientists Virginia Dale, Keith ...
Cached Biology News:Pinch away the pain 2Pinch away the pain 3The putative skull of St. Bridget can be questioned 2Beyond the corn field: Balancing fuel, food and biodiversity 2
anti-JNK2 Immunogen: Recombinant human JNK2 protein Accession Number: NM_002752 Quality Assurance: Routinely evaluated by immunoblot. Molecular Weight: 46 and/or 54 kDa Available ...
Gloves are 9.25 long, latex, powder free, smooth and ambidextrous....
Request Info...
... KLH-conjugated, synthetic peptide corresponding ... of human BRAF-HDAC complex protein/Lysine-specific ... Quality Assurance Routinely evaluated ... 2 years at -20°C ...
Biology Products: