Navigation Links
Robotic joystick reveals how brain controls movement

By training a group of human subjects to operate a robot-controlled joystick, Johns Hopkins researchers have shown that the slower the brain "learns" to control certain muscle movements, the more likely it is to remember the lesson over the long haul. The results, the investigators say, could alter rehabilitation approaches for people who have lost motor abilities to brain injuries like strokes.

In a report on the work in the May 23 issue of PLoS Biology, the researchers built on their observations that some parts of the brain learn - and forget - fast, while others learn more slowly and more lastingly. Both types of learning are critical.

"We believe our work is the first to show that motor learning involves different time scales and implies that the best strategy in rehabilitating a stroke patient should focus on slow learning because slow-learned motor skills will be maintained longer," says the report's senior author, Reza Shadmehr, Ph.D., a professor of biomedical engineering in the Institute of Basic Biomedical Sciences at Johns Hopkins.

Neuroscientists long have thought that two things are required for mastering such muscle control - time and error. Time refers to the need to "sleep on it," for the brain to somehow process and "remember" how to carefully control muscles. As for error, it's thought that mistakes help the brain and muscles fine-tune fine movements. The requirement for time and error explains why repetition of simple movements day after day is used routinely in rehabilitating partially paralyzed stroke patients and those with other brain injuries.

To test the need for time in mastering muscle control, the research team designed a simple and short task. Fourteen healthy human subjects were asked to hold onto a robot-controlled joystick and keep it from moving as the robot driver pushed repeatedly - in quick pulses - to one side. The joystick then pushed repeatedly in the opposite direction and again the subjects w
'"/>

Source:Johns Hopkins Medical Institutions


Page: 1 2 3

Related biology news :

1. Penn Researchers Use Robotic Surgery
2. Penn Surgeons Use Completely Robotic Surgery to Successfully Treat Prostate Cancer
3. Robotic whiskers can sense three-dimensional environment
4. Robotic therapy helps restore hand use after stroke
5. Robotic exoskeleton replaces muscle work
6. A bacterial genome reveals new targets to combat infectious disease
7. First real-time view of developing neurons reveals surprises, say Stanford researchers
8. Examination of internal wiring of yeast, worm, and fly reveals conserved circuits
9. NYU study reveals how brains immune system fights viral encephalitis
10. Study reveals new technique for fingerprinting environmental samples
11. Study reveals dramatic difference between breast cancers in US and Africa
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Robotic joystick reveals how brain controls movement

(Date:4/23/2014)... who have had a stroke, often suffer motor deficits ... study conducted in Taiwan, that will be published in ... is currently freely available on-line as an unedited early ... one group of stroke victims had their own peripheral ... and a similar group did not, those who received ...
(Date:4/23/2014)... the energy landscape in the U.S., but in ... the energy industry, residents and agricultural interests over ... degraded water quality is a potential risk unless ... in the ACS journal Environmental Science & ... point out that a major criticism of extracting ...
(Date:4/23/2014)... Climate fiction, or simply cli-fi, is a newly coined term ... global warming. New research from University of Copenhagen shows how ... to simulate the potential consequences of climate change and imagine ... than scientific data on changes in the atmosphere; it is ... by the books we read and the films we see. ...
Breaking Biology News(10 mins):Autologous stem cell therapy improves motor function in chronic stroke victims 2How to avoid water wars between 'fracking' industry and residents 2Fiction prepares us for a world changed by global warming 2Fiction prepares us for a world changed by global warming 3
... as calcified, inert structures, but researchers at Columbia University ... important novel function of the skeleton. Theyve shown for ... organ that helps control our sugar metabolism and weight ... development of type 2 diabetes. The research, ...
... passed on from mother to child is decided very early ... ovary. In a cell division process that is unique to ... egg before it is fertilised. Using a powerful microscope, researchers ... how the molecular machinery functions that is responsible for chromosome ...
... Haven, Conn. It is not just whats in your genes, ... between species at least in yeast according to a ... Weve known for a while that the protein coding genes of ... author Michael Snyder , the Cullman Professor of Molecular ...
Cached Biology News:Research shows skeleton to be endocrine organ 2A unique arrangement for egg cell division 2Evolution is driven by gene regulation 2
(Date:1/14/2014)... , Jan. 14, 2014 The largest international ... medicinal plants and therapeutic derivatives thereof has endorsed ... and researchers about the challenges of adulterated herb ... ) The Society for Medicinal ...
(Date:1/14/2014)... 2014 iLab Solutions, the leader in core ... Director of Product Strategy. In this role, Michelle will work ... to guide in the development of iLab products. Her main ... possible benefit to the scientific community by offering the most ...
(Date:1/14/2014)... WESTBOROUGH, Mass. , Jan. 14, 2014  RXi ... on discovering, developing and commercializing innovative therapies addressing ... announced that it received the Notice of Allowance ... on its unique self-delivering RNAi compounds (sd-rxRNA®), for ...
(Date:1/14/2014)... Kinaxis ®, provider of RapidResponse ®, a cloud-based supply ... ( S&OP ) service, is proud to be a gold ... held at the Hilton San Diego Bayfront, January 30 – ... Kaszas , Director of Supply Chain at Amgen, as she ...
Breaking Biology Technology:World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... DIEGO, Jan. 3, 2012  Amylin Pharmaceuticals, Inc. (Nasdaq: ... Morgan Healthcare Conference in San Francisco on Monday, January 9, ... Daniel M. Bradbury, president and chief executive officer of ... presentation and break-out session will be webcast through the "Investors" ...
... Renowned biochemist Michael A. Marletta, PhD, assumed the post ... January 1, succeeding Richard A. Lerner, MD, who led ... (Photo:  http://photos.prnewswire.com/prnh/20120102/DC28698 ) "I,m excited ... knowledge in the biosciences and applying that knowledge to ...
... BioNeutral Group, Inc. (OTCBB: BONU), a specialty life ... received $400,000 in connection with the Preferred Stock ... ("Vinfluence"), New South Wales, Australia.  Pursuant to the ... initial closing and a second funding of $200,000, ...
Cached Biology Technology:Michael A. Marletta Takes Office as New President of Scripps Research Institute 2BioNeutral Group Receives $400,000 in Equity Financing 2BioNeutral Group Receives $400,000 in Equity Financing 3
This monoclonal antibody specifically recognizes Y. pestiscapsular F1 antigen. It does not cross-react with Y. pseudotuberculosisor Y. enterocolitica....
... was first identified as the cellular homolog of ... and Jun D have been shown to be ... which are involved in dimerization and DNA binding, ... transcriptional activation, diverge. Antigen: ...
IHC Zinc Fixative - , 1000 ml Consult technical datasheet for details....
... (IC) Fixation Buffer, used in conjunction ... 00-8333), can be used to fix ... intracellular staining of cytokines and other ... have been specially formulated for reducing ...
Biology Products: