Navigation Links
Right or left? Brain stimulation can change which hand you favor
Date:9/27/2010

BERKELEY Each time we perform a simple task, like pushing an elevator button or reaching for a cup of coffee, the brain races to decide whether the left or right hand will do the job. But the left hand is more likely to win if a certain region of the brain receives magnetic stimulation, according to new research from the University of California, Berkeley.

UC Berkeley researchers applied transcranial magnetic stimulation (TMS) to the posterior parietal cortex region of the brain in 33 right-handed volunteers and found that stimulating the left side spurred an increase in their use of the left hand.

The left hemisphere of the brain controls the motor skills of the right side of the body and vice versa. By stimulating the parietal cortex, which plays a key role in processing spatial relationships and planning movement, the neurons that govern motor skills were disrupted.

"You're handicapping the right hand in this competition, and giving the left hand a better chance of winning," said Flavio Oliveira, a UC Berkeley postdoctoral researcher in psychology and neuroscience and lead author of the study, published this week in the journal Proceedings of the National Academy of Sciences.

The study's findings challenge previous assumptions about how we make decisions, revealing a competitive process, at least in the case of manual tasks. Moreover, it shows that TMS can manipulate the brain to change plans for which hand to use, paving the way for clinical advances in the rehabilitation of victims of stroke and other brain injuries.

"By understanding this process, we hope to be able to develop methods to overcome learned limb disuse," said Richard Ivry, UC Berkeley professor of psychology and neuroscience and co-author of the study.

At least 80 percent of the people in the world are right-handed, but most people are ambidextrous when it comes to performing one-handed tasks that do not require fine motor skills.
'/>"/>

Contact: Yasmin Anwar
yanwar@berkeley.edu
510-643-7944
University of California -- Berkeley
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Women Can Safely Get Pregnant Right After Miscarriage, Study Shows
2. Write the Right Words Answers What-to-Write Questions
3. CWRU study finds visually impaired people get insulin pen dosages right
4. Highlighting a Bright Spot in a Down Economy, Career Step to Re-launch Online Healthcare Training Program
5. Full reproductive and sexual health rights essential for maternal health goals
6. Bright Green Leadership Partners with TriplePundit to Help Businesses Improve Their Green Marketing Online
7. Henry Ford Hospital: New left-side heart pump improves right-side heart function
8. Dedicate Server and VPS Hosting Provider Company HostRightNow Technologies Partners with SmarterTools Inc.
9. Pennsylvania's Newest Power Companies Right in Your Neighbor's Back Yard
10. Citizen Stock Launches Industry's First Rights Managed Database of Images Shot Exclusively Against White
11. With the Right Approach, Plastic Surgery for Teens and Young Adults is Now a Positive Experience
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/22/2014)... time? How can women meet the demands of a ... become a mother has a profound effect on the ... the physical sciences. Yet many women successfully manage to ... Professor, fifteen inspirational personal accounts describe the challenges and ... chemistry. , The authors of the contributions are all ...
(Date:7/22/2014)... much-studied thing. Scientists have analyzed its blood flow, rhythms, ... heart. But for the first time, researchers are looking ... conditions of space flight affect those hearts for up ... Space Station. Lessons learned may help improve cardiovascular health ... imbalance in the body,s ability to handle toxic byproducts ...
(Date:7/22/2014)... The European Bio stimulants Market report defines ... analysis and forecast of revenue. The bio stimulants market ... million in 2013 to $940.6 million by 2018, at ... Browse through the TOC of the Europe Bio stimulants ... analysis provided. , http://www.micromarketmonitor.com/market/europe-bio-stimulants-1315565884.html , Agriculture contributes ...
(Date:7/22/2014)... 22, 2014 Alliance Storage ... data archiving solutions, has announced the availability of ... archiving solution. The unique new solution merges optical ... on compliant data archiving across all industries including ... The introduction of the new archiving tier permits ...
(Date:7/22/2014)... from the University of Murcia have studied the ... impulsiveness, a personality trait that causes difficulties in ... stimulus and leads to unplanned actions without considering ... an indicator for predicting the risk of behavioural ... from the University of Murcia analyses whether the ...
Breaking Medicine News(10 mins):Health News:The heart of an astronaut, five years on 2Health News:The heart of an astronaut, five years on 3Health News:Europe Bio Stimulants Market is Expected to Reach $940.6 Million in 2018 - New Report by MicroMarket Monitor 2Health News:Europe Bio Stimulants Market is Expected to Reach $940.6 Million in 2018 - New Report by MicroMarket Monitor 3Health News:Europe Bio Stimulants Market is Expected to Reach $940.6 Million in 2018 - New Report by MicroMarket Monitor 4Health News:Europe Bio Stimulants Market is Expected to Reach $940.6 Million in 2018 - New Report by MicroMarket Monitor 5Health News:Data Archiving Leader Alliance Storage Technologies Releases Enterprise Class Cloud-Integrated Storage Solution 2Health News:Data Archiving Leader Alliance Storage Technologies Releases Enterprise Class Cloud-Integrated Storage Solution 3Health News:Data Archiving Leader Alliance Storage Technologies Releases Enterprise Class Cloud-Integrated Storage Solution 4Health News:Children's impulsive behaviour is related to their brain connectivity 2
... They Don,t Fully Understand the Details ... of Their Health Insurance Plan, WESTLAKE ... insurers across the U.S., yet,contacting plan members regularly and increasing their ... ratings,more renewal business and additional sales of services to members,according to ...
... in the cross hairs of radiation or chemotherapy may ... are jammed, say University of Florida scientists writing in ... fruit fly cells discovered that slight changes in the ... aptly named for their roles in triggering cell ...
... American Heart,Association presented six Awards of Meritorious Achievement yesterday at,its ... Washington, D.C.,The award recognizes individuals for specific, significant accomplishments,or projects ... -- Kenneth M. Baker, M.D., professor and vice-chair ... of Medicine at the Texas A&M Health Science Center in ...
... toward Clinical Testing of Stem Cells Developed from Patients, ... ... April 30 Researchers have succeeded in,inducing stem cells grown from ... to a study publishing,online tomorrow in the journal "Stem Cells.", ...
... the key cells involved in both the synthesis and ... the plant extract Cpd 861 can regulate the expression ... an antifibrotic effect. , This research, performed by Dr. ... Institute, was published on March 21, 2008, in the ...
... TUSTIN, Calif., April 30 AMDL, Inc. ... in Shenzhen,Jiangxi, and Jilin, China, is a ... its subsidiary Jade,Pharmaceutical Inc., (JPI), the Company ... of diagnostic, pharmaceutical,nutritional supplement, and cosmetic products., ...
Cached Medicine News:Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 2Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 3Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 4Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 5Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 6Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 7Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 8Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 9Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 10Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 11Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 12Health News:J.D. Power and Associates Reports: Satisfaction with Health Plans Varies Dramatically From Region To Region, Largely Due to Poor Communication From Insurance Providers 13Health News:'Destruct' triggers may be jammed in tumor cells, UF geneticists say 2Health News:Six Receive Association's Award of Meritorious Achievement 2Health News:Mouse Adult Stem Cells Developed into Heart and Blood Cells 2Health News:Mouse Adult Stem Cells Developed into Heart and Blood Cells 3Health News:New findings: The anti-fibrotic mechanism of plant extract Cpd 861 2Health News:AMDL Signs MOU for 200 Store Distribution Arrangements for Goodnak Product Line 2
(Date:7/21/2014)... 21, 2014 /PRNewswire-iReach/ -- Nitrosolution.com, a website that features ... celebrate its first anniversary in August. The online retailer ... enhance the body,s ability to produce nitric oxide. Called ... up of a variety of phytonutrients and other natural ... to increase nitric oxide production in the ...
(Date:7/21/2014)... , July 21, 2014 Thoratec Corporation (NASDAQ: ... mechanical circulatory support therapies to save, support and restore ... operating results for the second quarter of fiscal year ... will hold a conference call to discuss its financial ... at 1:30 p.m., Pacific Daylight Time (4:30 p.m., Eastern ...
(Date:7/21/2014)... , July 21, 2014  EHE International, the recognized ... a nationwide physician network, today announced that Dignity Health ... NV has been named an EHE-certified preventive ... Las Vegas region now have greater ... maintain their health. "EHE is proud ...
Breaking Medicine Technology:Up and Coming Nitric Oxide Supplements Company Nitrosolution.com Celebrates its One Year Anniversary 2Thoratec Schedules Second Quarter Conference Call, Webcast 2EHE International Certifies Dignity Health Medical Group Nevada, LLC as Its Newest Partner 2
... BASEL, Switzerland , April 28 Roche announced today ... which, in concert with IAEA (International Atomic Energy Agency), will provide support ... , , ... be piloted in four African countries, and is linked with a wider ...
... LigoCyte Pharmaceuticals, Inc., a private biopharmaceutical company focused ... results from two Phase I studies of its norovirus virus-like ... Annual Conference on Vaccine Research. Sponsored by the National Foundation ... Bethesda, Maryland , from April 26-28, 2010 . , ...
Cached Medicine Technology:Roche Announces Joint Initiative to Train Healthcare Workers in Africa's Fight Against Cancer 2Roche Announces Joint Initiative to Train Healthcare Workers in Africa's Fight Against Cancer 3Roche Announces Joint Initiative to Train Healthcare Workers in Africa's Fight Against Cancer 4Data From LigoCyte's Clinical Studies of Norovirus VLP Vaccine Presented at 13th Annual Conference on Vaccine Research 2Data From LigoCyte's Clinical Studies of Norovirus VLP Vaccine Presented at 13th Annual Conference on Vaccine Research 3Data From LigoCyte's Clinical Studies of Norovirus VLP Vaccine Presented at 13th Annual Conference on Vaccine Research 4Data From LigoCyte's Clinical Studies of Norovirus VLP Vaccine Presented at 13th Annual Conference on Vaccine Research 5
... Adams compact II centrifuge ... small laboratory. Attached, durable cover ... seals to minimize aerosol emissions, ... low temperature rise, brushless motor, ...
... Powerful ventilated floor-standing centrifuge. Mobile space ... large choice of accessories, analog controls, ... & shutdown (JOUAN patented pendulum system), ... and temperature limitation, rugged motor, tough ...
... utilize the infinity-corrected optical system ... in cell checking. The CKX31 ... suited to routine applications in ... culture and embryology to immunology ...
Continuous rocking motion graphic display....
Medicine Products: