Could a magnet on your head turn you from right to left-handed?September 28th, 2010 - 1:52 pm ICT by ANI
Washington, Sept 28 (ANI): If you are a right-handed person, chances are you will use that handto pick up a cup of coffee or write, but a new study shows that a magnet on your head could very well make you a leftie.
Researchers from the University of California, Berkeley, 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 parietal cortex plays a key role in processing spatial relationships and planning movement, and by stimulating it the left hemisphere motor skills are disrupted.
The study’s findings show 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.
“Alien hand syndrome,” a neurological disorder in which victims report the involuntary use of their hands, inspired researchers to investigate whether the brain initiates several action plans, setting in motion a competitive process before arriving at a decision.
The study is published this week in the journal Proceedings of the National Academy of Sciences. (ANI)
- How brains guide hands to swat flies - Jul 16, 2010
- Magnets may help treat major depression - Oct 12, 2010
- Transcranial magnetic brain stimulation key to treating brain disorders - Jan 29, 2011
- Magnets can help stroke patients speak - Nov 16, 2011
- Hand movements may give clues to ADHD severity - Feb 15, 2011
- Magnetic pulses could overcome depression, schizophrenia - Feb 08, 2012
- Ball lightning 'just a hallucination caused by regular lightning' - May 15, 2010
- Magnets could skew our sense of right, wrong - Jan 26, 2011
- Study finds part of brain that rotates image mentally - Mar 10, 2011
- Response to approaching footsteps in the dark is hard-wired in our brains - Oct 16, 2009
- Mini-strokes create lasting damage to the brain - Jan 29, 2011
- Brain-stimulation method may help fight depression - May 04, 2010
- Magnets can improve language ability in Alzheimer's patients - Jun 24, 2010
- Brain stimulation 'helps paralyzed stroke patients regain motor function' - Sep 14, 2010
- How humans 'reach for something' using 'brain maps' - Dec 04, 2010
Tags: alien hand syndrome, brain injuries, cup of coffee, disuse, handed person, journal proceedings, key role, left hemisphere, magnetic stimulation, national academy of sciences, neurological disorder, paving the way, posterior parietal cortex, proceedings of the national academy, proceedings of the national academy of sciences, richard ivry, setting in motion, spatial relationships, tms, university of california berkeley