HOME >> BIOLOGY >> NEWS
New findings help explain the dynamics between the dominant and non-dominant arm

March 18, 2003 (Bethesda, MD) The phrase, "the right hand doesn't know what the left hand is doing," has its roots in a passage of the Bible (Matthew 6:3). If there is truth to this old saying, the reasons may have as much to do with the way the brain obtains information from the arms as it does from the observations of ancient scribes.

Background
Most individuals are either left- or right-handed. How the skills they have learned from the dominant arm (or hand) are transferred to the non-dominant arm have long intrigued physiologists and neurologists.

The transfer of a skill learned in one hand to the other hand has been used as evidence for the role of the brain's hemispheres in controlling that skill. The movement of knowledge from the dominant to the nondominant arm (D ND) has been interpreted as confirmation of the brain's ability to encode an experience in the dominant hemisphere with the dominant hand and to influence the performance of the nondominant hand. Many researchers believe that this process is accomplished either through connections across both hemispheres or through the same side of the brain. Other scientists believe that transfer in the opposite direction reflects a dominance of the right hemisphere (in right-handers) for some aspects of motor control, so both directions of transfer can be explained with a single model.

Little is known about the involvement of the body's subcortical structures (such as the cerebellum, and spinal cord) in this process. While it is possible to get some indication of the role of the cerebral hemispheres through the study of subjects with a sectioned corpus callosum, this has rarely been pursued in the case of motor learning and transfer. Accordingly, a team of researchers wondered whether learning a force field with one arm generalizes to the other arm.

Previous observations have found that since learning generalizes in a muscle-like, intrinsic coordinate system
'"/>

Contact: Donna Krupa
djkrupa1@aol.com
703-527-7357
American Physiological Society
18-Mar-2003


Page: 1 2 3

Related biology news :

1. International study findings link acne-like rash to effectiveness of new targeted cancer treatment
2. Virginia Tech researchers to release findings on Smith River Project
3. New HIV findings
4. Stanford researchers findings may shed light on common, deadly birth defect
5. Briggs takes to the molecular level Darwins findings on plants sensing the direction of light
6. Latest findings on PCBs to be subject of June workshop at Illinois
7. Chlamydia in men now also linked to infertility new findings
8. New MS research shows remarkable findings
9. Scientists findings may lead to better understanding of how that sleep develops, matures
10. New findings are a window into the late stages of Lou Gehrigs disease
11. New findings bring mixed blessings to those looking to combat jet lag

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/9/2017)... Australia , March 9, 2017 4Dx ... prestigious World Lung Imaging Workshop at the University of ... was invited to deliver the latest data to world ... recognised event brings together leaders at the forefront of ... in lung imaging. "The quality of ...
(Date:3/6/2017)... , March 6, 2017 Mintigo ... technology, today announced Predictive Sales Coach TM , ... actionable sales intelligence into Salesforce. This unique AI ... their sales organizations with deep knowledge of their ... for intelligent engagement. Predictive Sales Coach extends Mintigo,s ...
(Date:3/2/2017)... Australia , March 2, 2017 Australian ... Ltd (ASX: CYP), has signed an agreement with ... from the Monash Biomedicine Discovery Institute and Department of ... to conduct a further preclinical study to support the ... treatment of asthma.  Asthma is a ...
Breaking Biology News(10 mins):
(Date:3/27/2017)... Properties (NYSE: CUZ ) announced today that Amgen, ... 10-year, approximately 125,000 square-foot lease at Corporate Center, a 1,224,000 ... submarket of Tampa, FL. ... for their new location in Tampa ," ... of Cousins Properties. "Amgen is a cutting-edge global company at ...
(Date:3/27/2017)... DUBLIN , March 27, 2017 ... access to a comprehensive library of reports on Valero ... the transportation fuels and petrochemical industries. ...      (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO) ... is biofuel production to go green. Ethanol today, even though ...
(Date:3/27/2017)... NEW YORK , March 27, 2017 /PRNewswire/ ... company developing novel therapies for neurodegenerative diseases, including ... confirmation that its application to list the Company,s ... been approved by The NASDAQ Stock Market, a ... of the listing, Neurotrope will ring the Opening Bell ...
(Date:3/24/2017)... 24, 2017 On Thursday, March ... at 5,817.69, down 0.07%; the Dow Jones Industrial Average ... S&P 500 closed at 2,345.96, marginally dropping 0.11%. US ... in green, 4 sectors finished in red, and 1 ... has initiated reports coverage on the following Biotechnology equities: ...
Breaking Biology Technology:
Cached News: