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:5/11/2015)... , May 11, 2015  Synaptics Incorporated (NASDAQ: ... interface solutions, today announced the appointment of ... Chief Financial Officer, reporting to Rick Bergman ... current Chief Financial Officer, Kathleen Bayless , ... Mr. Ali brings extensive financial management ...
(Date:5/10/2015)... GOTHENBURG, Sweden , May 11, 2015 ... touch fingerprint sensors FPC1025 and FPC1155 from the distributor World ... one of FPC,s distributors in Asia . ... the sensors will be used by smartphone manufacturers in ... is included in the communicated revenue guidance of + 1 000 ...
(Date:5/6/2015)... , May 6, 2015 LifeBEAM, a ... established helmet producer, announced today that they will expand ... the world,s first bio-sensing cycling helmet and the first ... in two new colors in order to give cyclists ... product. In addition, LifeBEAM and Lazer announced their plan ...
Breaking Biology News(10 mins):Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 235 Million 2LifeBEAM and Lazer Announce Expanded Partnership in Bio-Sensing Sports Gear 2LifeBEAM and Lazer Announce Expanded Partnership in Bio-Sensing Sports Gear 3
... it instinctively avoids the feline or risks becoming dinner. How? ... sense of smell, provides evidence that a single gene is ... neurobiologist Thomas Bozza has shown that removing one olfactory receptor ... The gene, called TAAR4, encodes a receptor that responds to ...
... songs in tropical waters during the winter breeding season, ... times of the year. NOAA researchers have provided ... acoustic behavior on a feeding ground in the Northwest ... in the journal PLOS ONE , demonstrate the ...
... Institutet in Sweden have managed to obtain detailed images of ... into cells. Since tumours are highly dependent on the transportation ... the researchers are hoping that the study published in the ... form the basis for new strategies to fight cancer cells. ...
Cached Biology News:Cat and mouse: A single gene matters 2Cat and mouse: A single gene matters 3Researchers track singing humpback whales on a Northwest Atlantic feeding ground 2Mapping of cancer cell fuel pumps paves the way for new drugs 2
(Date:5/30/2015)... May 30, 2015  Caris Life Sciences® today ... in which researchers identified biomarker changes, including key ... tumors, indicating changes in response to therapy as ... was a subset of a larger study analyzing ... the cancer. These data utilizing Caris Molecular Intelligence®, ...
(Date:5/29/2015)... CA (PRWEB) May 29, 2015 ... addressing multi-drug-resistant organisms (MDROs), announced that initial feasibility ... same-shift bacterial detection and susceptibility testing from positive ... on May 31, 2015 in New Orleans, ... class of molecular diagnostics that can quickly detect ...
(Date:5/29/2015)... 2015 Delcath Systems, Inc. (NASDAQ: ... company focused on oncology with an emphasis on ... announces that results of a large, European single-center ... with hepatic metastases with the Delcath Hepatic CHEMOSAT ... on-line abstract at the American Society of Clinical ...
(Date:5/29/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/7bf7ff/cytogenetics ... new report "Cytogenetics - Technologies, Markets and ... report deals with cytogenetics in a broader sense ... the chromosome structure and identify abnormalities related to ... is also referred to as molecular cytogenetics. The ...
Breaking Biology Technology:Caris Life Sciences Paired Tumor Data Identifies Key Driver Mutations and Confirms Tumor Heterogeneity in High-Grade Glioma Samples 2Caris Life Sciences Paired Tumor Data Identifies Key Driver Mutations and Confirms Tumor Heterogeneity in High-Grade Glioma Samples 3Caris Life Sciences Paired Tumor Data Identifies Key Driver Mutations and Confirms Tumor Heterogeneity in High-Grade Glioma Samples 4Data Highlighting GeneWEAVE’s Smarticles™ Technology to be Presented at the 115th General Meeting of the American Society for Microbiology (asm2015) 2Data Highlighting GeneWEAVE’s Smarticles™ Technology to be Presented at the 115th General Meeting of the American Society for Microbiology (asm2015) 3Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 2Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 3Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 4Positive Data With Delcath's CHEMOSAT Highlighted At ASCO 2015 5Global Cytogenetics Market Report 2015-2024 - Technologies, Markets and Companies 2Global Cytogenetics Market Report 2015-2024 - Technologies, Markets and Companies 3
... , , Zdechlik ... , , NEW YORK, ... molecular oncology diagnostics to aid in early cancer detection and ... Chief Operating Officer. As COO, Zdechlik will be responsible ...
... ... Holden to present the keynote address , ... Parsipany, NJ (PRWEB) July 22, 2009 -- Vistaar Technologies, ... finance groups, today announced the company will partner with the Professional Pricing Society (PPS), ...
... , LYNBROOK, N.Y., July 22 ... developing first in class collagenase-based products, today announced that BioSpecifics, President, ... Small-Cap Investor Conference on Wednesday, July 29, 2009, at 9:30am CT ... , A live webcast of the presentation can be ...
Cached Biology Technology:Exosome Diagnostics Appoints Former Roche Executive Greg Zdechlik as Chief Operating Officer 2Vistaar and the Professional Pricing Society Partner to Present Premier Symposium for Pricing Practitioners 2Vistaar and the Professional Pricing Society Partner to Present Premier Symposium for Pricing Practitioners 3
... The Model 1575 immunowash microplate washer ... microplates that have flat-, U-, or V-bottom ... of horizontal and vertical needle positions to ... washing, crosswise aspiration, and overflow washing. It ...
... compact benchtop and stackable multi-function incubator. ... a large display screen to accurately ... circulation inside to evenly distribute temperature ... easily calibrated from the microprocessor controller. ...
... specifically designed as a high tech shaker ... mass compensation allows high shaking speed even ... and, therefore, faster growth and higher cell ... when high reproducibility is critical ...
...
Biology Products: