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:2/9/2016)... 9, 2016 Aware, Inc. (NASDAQ: AWRE ), a ... for its fourth quarter and year ended December 31, 2015.  ... fourth quarter of 2015 was $6.9 million, an increase of 61% ... income in the fourth quarter of 2015 was $2.6 million compared ... --> --> Higher revenue and operating ...
(Date:2/5/2016)... Feb. 5, 2016 ... the "Global Facial Recognition Market 2016-2020" ... http://www.researchandmarkets.com/research/5kvw8m/global_facial ) has announced the addition ... 2016-2020" report to their offering. ... ) has announced the addition of the ...
(Date:2/3/2016)... 2016 --> ... "Automated Fingerprint Identification System Market by Component (Hardware and ... & Finance, Government, Healthcare, and Transportation) and Geography - ... is expected to be worth USD 8.49 Billion by ... and 2020. The transformation and technology evolution from the ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... and New York, New York (PRWEB) , ... ... ... Regeneron Pharmaceuticals Inc. (NASDAQ: REGN) today announced that it has joined ... new vaccines and immunotherapies for infectious diseases and cancer. , The ...
(Date:2/10/2016)... plc (NYSE: AGN ) a leading global pharmaceutical ... CEO and President, will be featured as the keynote ... Capital Markets Healthcare Conference on Tuesday, February 23, 2016 ... Hotel in New York, NY . ... accessed on Allergan,s Investor Relations web site at ...
(Date:2/10/2016)... ... February 10, 2016 , ... Benchmark Research, a fully-integrated network ... two long-standing principal investigators (PI) to the roles of Chief Medical Officer, Clinical ... Dr. Laurence Chu, a Benchmark Research PI in the Austin office, will assume ...
(Date:2/10/2016)... ... February 10, 2016 , ... LATHAM, NEW YORK... Marktech ... SPIE Photonics West conference in San Francisco’s Moscone Center from February 16-18, 2016, ... venue. , These latest InGaAs PIN diode standard packages feature a TO-46 metal ...
Breaking Biology Technology:
Cached News: