Navigation Links
Right-handers, but not left-handers, are biased to select their dominant hand
Date:3/8/2011

Milan, Italy, 8 March 2011 The vast majority of humans over 90% prefer to use their right hand for most skilled tasks. For decades, researchers have been trying to understand why this asymmetry exists. Why, with our two cerebral hemispheres and motor cortices, are we not equally skilled with both hands? A study from the University of Aberdeen in the UK, published in the April 2011 issue of Elsevier's Cortex (http://www.sciencedirect.com/science/journal/00109452), suggests that the explanation may stem from actions that require us to use both hands at the same time, which may bias right-handers toward choosing their right hands.

Gavin Buckingham, now a postdoctoral researcher at the Centre for Brain and Mind at the University of Western Ontario in Canada, and his PhD supervisor Dr. David Carey, asked left- and right-handed participants to reach first toward a pair of targets with both hands at the same time and, immediately afterwards, toward a new single target with only their closest hand. Just before they began the reach, subjects were given a short vibratory pulse on one of their hands, giving them a clue about where the new target would appear, and hence which hand should perform this second portion of the reach. On a small proportion of trials, the pulse was given to the wrong hand, which meant that subjects had to restrain the reach with this incorrectly-cued hand in order to make the reach with the correct hand.

The right-handed subjects had far greater trouble dealing with this incorrect cue when it was given to their right hands, making more mistakes and taking longer to successfully inhibit the reaches, almost as if the right hand was already pre-selected to carry on during the bimanual reach. The left-handed subjects showed no such asymmetries, suggesting that they are less inherently biased to select one hand over the other.

These findings buil
'/>"/>

Contact: Laura Fabri
l.fabri@elsevier.com
39-028-818-4353
Elsevier
Source:Eurekalert

Page: 1 2

Related medicine news :

1. FDA Warns Cosmetic Doctor about Promoting Anti-Wrinkle Drug before FDA Approval; Unbiased Information on Skin Care a Precious Resource Says SkinTour.com
2. CROI -- Day 3: Selected highlights of NIH-supported research
3. CROI -- Day 2: Selected highlights of NIH-supported research
4. Brigham and Womens Hospital selected to participate in Medicare imaging demonstration project
5. Paper by Rhode Island Hospital physician selected among best of 2010 by JACR
6. Selective strategy recommended for CT scans in emergency departments
7. With proper planning, selective rather than mass vaccination can provide immunity against flu
8. Forces for cancer spread: Genomic instability and evolutionary selection
9. UCLA selected by Homeland Security to help establish guidelines for firefighter health and safety
10. Selective inhibition of BMK1 suppresses tumor growth
11. Selected cells from blood or bone marrow may provide a route to healing blood vessels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/30/2014)... MA (PRWEB) August 31, 2014 In a ... eat dog’ approach, Karma Web Group, LLC launches a game ... and Android the newly launched Ultimate Karma app is a ... with new levels of play, the game pulls double-duty by ... the same time. , Designed to reward gamers for consistently ...
(Date:8/30/2014)... August 31, 2014 This Labor Day, ... growing union in New York State and nationwide, is ... jobs and the best quality of care to New ... recent years, thousands of healthcare workers in the region ... families by becoming members of the healthcare workers’ union. ...
(Date:8/30/2014)... Atlanta based automotive group Jim Ellis Automotive ... and awareness for ALS by participating in the popular ... even Vice President Jimmy Ellis all participated in the ... viewed on their Youtube page; https://www.youtube.com/watch?v=pxufyxVo9j0 . , ... and staff also took the opportunity to challenge various ...
(Date:8/30/2014)... distinguished wedding dress supplier, has gained a great market response ... the company has unveiled its beautiful collection of “ flowy ... these brand new products are provided with big discounts, up ... unveil the new and trendy bridesmaid outfits and launch the ... low prices now. The purpose of our company is to ...
(Date:8/30/2014)... The Truth about Six Pack Abs is a ... users some shocking foods that can burn belly fat, unique ... as well as some motivation secrets for successful fitness. , ... one unique trick that can help users reduce junk-food cravings. ... people might think, cardio exercise routines are not the best ...
Breaking Medicine News(10 mins):Health News:Newly Launched Ultimate Karma App Elicits Happiness in Players and Encourages Moral Values 2Health News:This Labor Day, 1199SEIU Continues Commitment to Growing Local Economies with Good, Middle-Class Healthcare Jobs 2Health News:This Labor Day, 1199SEIU Continues Commitment to Growing Local Economies with Good, Middle-Class Healthcare Jobs 3Health News:This Labor Day, 1199SEIU Continues Commitment to Growing Local Economies with Good, Middle-Class Healthcare Jobs 4Health News:Jim Ellis Automotive Group Take the ALS Ice Bucket Challenge 2Health News:UWDress.com’s Beautiful Collection Of “Flowy Bridesmaid Dresses” Released 2Health News:Truth about Six Pack Abs Review Reveals Unique Method to Eliminate Stubborn Stomach Fat 2
... chronic myelogenous leukemia works for patients who have developed ... than other medications in its class, a research team ... D. Anderson Cancer Center reports at the 49th annual ... has shown good efficacy and very little toxicity compared ...
... Inc., a,developer of innovative technologies and products ... provider of QuantiGene(R) and,QuantiGene Plex(R) products for ... they have been awarded Frost & Sullivan,s ... of the Year,Award. Frost & Sullivan, a ...
... Dec. 11, 2007 Researchers at UT Southwestern Medical ... of Cushing syndrome, a metabolic disorder caused by adrenal ... The study, appearing in the December issue of the ... surgical outcomes reported in patients with subclinical Cushing syndrome ...
... 10 California,s,Fair Political Practices Commission today agreed ... cell board member John Reed, the,Foundation for Taxpayer ... non-profit consumer advocacy organization filed the,complaint two weeks ... the Burnham,Institute for Medical Research, because he improperly ...
... patients are suffering unnecessarily because they wrongly believe that morphine ... dying and as a last resort rather than seeing them ... life. , In a study published online today (Tuesday 11 ... in palliative care also say the belief that opioids hasten ...
... Dec. 10 Novo Nordisk Inc.,today announced the company ... Exubera(R) infringed patents owned by Novo Nordisk.,The patents cover ... originally filed in August 2006 in United States,Federal Court ... Nordisk is a healthcare company with an 84-year history ...
Cached Medicine News:Health News:Early Phase II results show bosutinib safe, effective for CML 2Health News:Panomics Inc.: Recipient of the Frost & Sullivan 2007 United States Drug Discovery Technologies Entrepreneurial Company of the Year Award 2Health News:Panomics Inc.: Recipient of the Frost & Sullivan 2007 United States Drug Discovery Technologies Entrepreneurial Company of the Year Award 3Health News:UT Southwestern: Patients with mild Cushing syndrome may benefit from adrenalectomy 2Health News:UT Southwestern: Patients with mild Cushing syndrome may benefit from adrenalectomy 3Health News:Fair Political Practices Commission Will Investigate Stem Cell Conflict of Interest 2Health News:Morphine: a comfort measure for the dying or pain control for the living? 2Health News:Morphine: a comfort measure for the dying or pain control for the living? 3Health News:Morphine: a comfort measure for the dying or pain control for the living? 4
(Date:8/29/2014)... 29, 2014  A Boston Scientific Corporation (NYSE: ... stent removability and preliminary long term stricture resolution ... the August issue of the peer-reviewed journal, Gastroenterology. ... is being conducted in 11 countries and five ... metal stents (FCSEMS) after extended indwell (i.e., up ...
(Date:8/29/2014)... , Aug. 29, 2014 Research and ... "China Orthopedic Instrument Industry Report, 2014-2017" report to ... population and rising proportion of reimbursement for medical expenses, ... released, with its scale presenting a CAGR of 19.2% ... are three product segments of orthopedic instruments in ...
(Date:8/29/2014)... 2014 Research and Markets has ... Trend Forecast of Pharmaceutical Equipment Market in China, 2014-2018" ... and Development Trend Forecast of Pharmaceutical Equipment Market in ... China,s pharmaceutical equipment industry in the ... landscape, and business performance of domestic major enterprises, as ...
Breaking Medicine Technology:Boston Scientific Study Published In Gastroenterology Reports Successful Management Of Benign Biliary Strictures With Fully Covered Metal Stents 2Boston Scientific Study Published In Gastroenterology Reports Successful Management Of Benign Biliary Strictures With Fully Covered Metal Stents 3Boston Scientific Study Published In Gastroenterology Reports Successful Management Of Benign Biliary Strictures With Fully Covered Metal Stents 4China Orthopedic Instrument Industry Report, 2014-2017 2Research and Development Trend Forecast of Pharmaceutical Equipment Market in China, 2014-2018 2
... CB1,antagonist rimonabant to show benefits beyond weight reduction ... | March 08, 2007 | The Business Intelligence,firm ... antagonist Acomplia (rimonabant) has at least,five competitors in ... more,in earlier phases of R&D. While Acomplia received ...
... March, 9, 2007-Active Biotech (ACTI.ST), today,announced new positive clinical ... treatment of prostate cancer. , By step-wise dose escalation, ... which corresponds to a doubling of the previously,reported maximum ... a step-wise intra-patient dose-escalation enables a dose,of 1 mg/day ...
Cached Medicine Technology:Weight Management is Not Enough for Cannabinoid Type 1 (CB1),Receptor Antagonists to Become a Commercial Success 2Weight Management is Not Enough for Cannabinoid Type 1 (CB1),Receptor Antagonists to Become a Commercial Success 3Positive Clinical Data for TASQ - Active Biotech's Novel Treatment,of Prostate Cancer 2
... The Leica M520 OH3 ... the best optical performance available ... innovative and unique stand. The ... lightest, has the greatest range ...
Advanced operating microscope with high-resolution apochromatic optics. Senso-servo drive to keep the microscope in perfect balance even if parts are moved or mounted elsewhere....
PS Medical lumboperitoneal catheter systems are designed to divert CSF from the lumbar subarachnoid space to the peritoneal cavity, using simplified surgical techniques....
Curved left, Hardy Curettes, bayonet, working distance 120 mm, total length 241 mm....
Medicine Products: