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:11/7/2014)... Calif. , Nov. 7, 2014  In conjunction with ... Police Departments, The Community Foundation of the Verdugos ... DNA JUSTICE PROJECT," a $250,000 initiative to keep ... initial phase. In its first six months of existence, the ... needed evidence support for local law enforcement. "Because ...
(Date:11/6/2014)... occur because of metastasis, yet progress in preventing ... , "It,s been particularly challenging to design drugs ... fellow in systems biology at Harvard Medical School. ... after they,ve already metastasized." , Gujral and colleagues ... help researchers better understand how metastasis begins. Their ...
(Date:11/5/2014)... in the UTSA College of Sciences, is one ... receive a two-year $300,00 National Science Foundation (NSF) ... funding supports President Obama,s BRAIN Initiative, a federal ... that will demystify complex brain processes. , ... broken into the interactions of multiple components, each ...
Breaking Biology News(10 mins):Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2Migration negation 2Migration negation 3UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3
... been honored by the National Science Foundation with a ... with microfluidic devices, which promise to improve 3D tissue ... University of Texas College of Engineering in 2007, has ... tissue and cells on microchips. , Her devices produce ...
... The Federation of American Societies for Experimental Biology ... inaugural advocacy competition, Stand Up for Science. The competition ... the health, quality of life, or economy of local ... submitted by ,Stand With Science, a group of graduate ...
... the amphibians and reptiles of Sierra Madre Mountain Range, ... 100 species that contribute to the unique biodiversity of the region. ... more than 150 species. Out of these, a total of 49 ... a remarkable 32 endemic. In the world of reptiles, Luzon can ...
Cached Biology News:The amazing amphibians and reptiles of the Philippine island Luzon 2
(Date:11/22/2014)... RURO, Inc., a leading LIMS, RFID ... version 5.1.4. , RURO’s deployment teams have been ... in RURO’s 8 year history. Many deployments have ... version 5.1.4 is the perfect example – the ... , Limfinity® 5.1.4 release highlights – more than ...
(Date:11/22/2014)... , November 21, 2014 ... wechselt als Chief Commercial Officer zu KLOX    ... der Unternehmensentwicklung und Chief Financial Officer bestellt    ... mit der Vermarktung seines jüngst zugelassenen Behandlungssystems zur Wundheilung ... ("KLOX" bzw. das "Unternehmen") ist sehr erfreut, die folgenden ...
(Date:11/21/2014)... November 20, 2014 Author Matthew J. ... to the Other Side” published as a tribute ... in the “Fiction: Short Story” category of the ... President and CEO of USA Book News, said this ... independent publishers, including Simon & Schuster, Penguin, John Wiley ...
(Date:11/21/2014)... Why did Stephen Hawking become so famous? ... recognizable? Why have they become icons to rival film ... Ratcliffe seeks out the answers to those questions, and ... with science. In " Stephen Hawking Smoked My Socks ... Ratcliffe puts it plainly: , “It is profoundly ...
Breaking Biology Technology:RURO Announces Limfinity® version 5.1.4 2KLOX Technologies meldet Neubesetzung von Führungspositionen 2KLOX Technologies meldet Neubesetzung von Führungspositionen 3KLOX Technologies meldet Neubesetzung von Führungspositionen 4KLOX Technologies meldet Neubesetzung von Führungspositionen 5Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 2Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 3Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 4“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4
... BHRT ) a company committed to delivering ... treat heart failure and,cardiovascular diseases, today announced financial ... Recent Clinical Highlights:, -- On July ... a preclinical,study involving the injection of myoblasts modified ...
... adaptive and assistive technology, MIDDLETOWN, NY and ... of the world,s first commercially available bionic hand,today ... 2008 da Vinci Award from the,National Multiple Sclerosis ... most innovative developments and,research in adaptive and assistive ...
... RICHMOND, Texas, July 30 DNA Heritage has recently,overcome ... severely,restricted the use of DNA testing and databases that ... through their DNA. The patent covers the,use of surnames ... Property Office (UK IPO) has now rendered a formal ...
Cached Biology Technology:Bioheart, Inc. Announces Financial Results for Second Quarter 2008 2Bioheart, Inc. Announces Financial Results for Second Quarter 2008 3Bioheart, Inc. Announces Financial Results for Second Quarter 2008 4Bioheart, Inc. Announces Financial Results for Second Quarter 2008 5Bioheart, Inc. Announces Financial Results for Second Quarter 2008 6Bioheart, Inc. Announces Financial Results for Second Quarter 2008 7Touch Bionics a 2008 da Vinci Award winner 2DNA Heritage Success in Patent Battle Helps Keep Genealogy DNA Test Prices Low 2
Anti-human C5/C5b, Clone 568, Monoclonal Antibody...
Transcription factor Sp2. [Source:Uniprot/SWISSPROT;Acc:Q02086] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Rabbit Anti-melatonin (different linkage) Polyclonal Antibody...
... Rabbit monoclonal [EP282Y] to Asparagine ... all tested applications). ... corresponding to residues in the ... Entrez GeneID: ...
Biology Products: