Navigation Links
Converting Left-hander to Right-hander also Changes the Brain

A study of converted left-handers, natural lefties who have switched over to right hand use, has shown that such a shift changes the way their brains are organized, and how hard particular regions work.

The researchers say while some areas in such peoples brains continue to retain characteristics of a practising lefty, other areas switch to the patterns of a righty.

"The question now is, 'do converts suffer because of this extra attention that they exert?'" Nature magazine quoted Stefan Kloppel of University College London, who led the study, as saying.

While writing, the left hand of a person is generally controlled by the right side of the brain, and vice-versa. However, in the current study, the researchers found that converting from left-hander to right-hander did not simply move brain activity to the other half of the brain.

In the course of study, right-handers, left-handers and converted left-handers were given a simple task to perform, in which they had to press a button with one of the other hand in response to seeing particular symbols. Throughout the task their brain activity was monitored with a magnetic resonance imaging (MRI) scan.

The researchers found that one movement-related area of the brain was most active in the right hemisphere for left-handers, and in the left hemisphere for right-handers, including converted left-handers. But the activity in this region was greater in the converts.

However, a second set of brain regions involved in planning movement continued to act like those of left-handers in people who had switched to right-handedness. These regions were also more active in converts than in those who stuck with left-handedness.

"They still look like left handers, but even more emphasised," says Kloppel.

Clare Porac, a psychologist at Pennsylvania State University, feels that there might be greater activity in the brains of converted lefties, but still it would be too early to conclude that they are adversely affected.

"I wouldn't interpret that their brains are working harder," she says.

She notes that most converted lefties are ambidextrous, and this fits in well with the fact that there was activity on both sides of their brains.

Working in collaboration with Brazil-based researcher Lee Martin of the Federal University of Para in Belem, Porac has also found that in people who change their writing hand, other behaviours remain firmly left-handed.

Klppel is of the opinion that he new study may reveal things about the brain beyond its involvement in handedness, as it shows how flexible the brain is in terms of which regions can do what.

"The key thing is that there are areas that can be influenced by training and areas that resist this. It's not only interesting in regard to handedness, but also in terms of plasticity," he says.


'"/>




Related medicine news :

1. Breakthrough in Converting Blood Groups
2. GlaxoSmithKline - Changes Lamictal(R) Label Appearance and Packaging
3. Changes in cabin pressure pose risks for moms-to-be
4. Dietary Changes Could Reduce The Risk for Stroke
5. Link Between High Blood Sugar And Behavioral Changes
6. Specific Changes In A Particular Gene Found To Increase The Risk of Alzheimer’s Diseas
7. Ultrasounds To Detect Changes In Heart Motions
8. Changes In Brain Structure From Methamphetamine Abuse And HIV Infection
9. Age Can Changes Symptoms Of Sinusitis
10. New Research To Study Brain Changes In Premature Births
11. MRI Shows Emotional Changes During Menstrual Cycle
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/27/2016)... ... June 27, 2016 , ... "FCPX editors can now reveal their media with ... X," said Christina Austin - CEO of Pixel Film Studios. , ProSlice Color ... users can now reveal the media of their split screens with growing colorful ...
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... TopConsumerReviews.com recently ... of Eyeglasses . , Millions of individuals in the United States and Canada ... become a way to both correct vision and make a fashion statement. Even celebrities ...
(Date:6/26/2016)... ... June 26, 2016 , ... PawPaws brand pet ... product that was developed to enhance the health of felines. The formula is all-natural ... two main herbs in the PawPaws Cat Kidney Support Supplement Soft Chews ...
(Date:6/25/2016)... , ... June 25, 2016 , ... Austin residents seeking ... American College of Mohs Surgery and to Dr. Russell Peckham for medical and surgical ... effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by ...
(Date:6/25/2016)... , ... June 25, 2016 , ... As a lifelong ... Cum Laude and his M.D from the David Geffen School of Medicine at UCLA. ... to Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... HILL, N.C. , June 24, 2016 /PRNewswire/ ... healthcare decisions and regulators/payers have placed more emphasis ... new environment, patient support programs in the pharmaceutical ... for patients, medications. Consequently, pharmaceutical companies are focusing ... ensure they are providing products and services that ...
(Date:6/24/2016)... , June 24, 2016 ... the "Structural Electronics 2015-2025: Applications, Technologies, Forecasts" ... In-Mold Electronics, Smart Skin, Structural ... Structural electronics involves electronic and/or ... protective structures, replacing dumb structures such as vehicle ...
(Date:6/24/2016)... , June 24, 2016 According ... by Type (Standard Pen Needles, Safety Pen Needles), Needle ... GLP-1, Growth Hormone), Mode of Purchase (Retail, Non-Retail) - ... This report studies the market for the forecast period ... reach USD 2.81 Billion by 2021 from USD 1.65 ...
Breaking Medicine Technology: