Brain Stimulation Enhances Motor Skill Learning
According to researchers at the National Institutes of Health (NIH), people who received a mild electrical current to a motor control area of the brain were significantly better able to learn and perform a complex motor task than those in control groups.
The study is presented in the Proceedings of the National Academy of Sciences. The research team from NIH's National Institute of Neurological Disorders and Stroke (NINDS) worked in collaboration with investigators at Columbia University in New York City and Johns Hopkins University in Baltimore.
Motor skills, which are used for activities from typing and driving, to sports, require practice and learning over a prolonged period of time. During practice, the brain encodes information about how to perform the task, but even during periods of rest, the brain is still at work strengthening the memory of doing the task. This process is known as consolidation.
Subjects in this study were presented with a novel and challenging motor task, which involved squeezing a "joy stick" to play a targeting game on a computer monitor, which they practiced over five consecutive days. During practice, one group received 20 minutes of transcranial direct current stimulation (tDCS) and the other group received only a 30 second "sham" stimulation. tDCS involves mild electrical stimulation applied through surface electrodes on the head, and works by modulating the excitability, or activity, of cells in the brain's outermost layers. In this study, Dr. Cohen and his team directed tDCS to the primary motor cortex, the part of the brain that controls movement.
Over the five-day training period, the skill of the tDCS group improved significantly more that that of the control (sham) group, apparently through an effect on consolidation. During the three month follow-up period, the two groups forgot the skill at about the same rate, but the tDCS group continued to perform better because they had learned the skill better by the end of training.
The findings could hold promise for enhancing rehabilitation for people with traumatic brain injury, stroke and other conditions.
If stimulating the brain to improve learning sounds science-fictional, you're right. I remember this from Cities in Flight, a terrific novel of the 1950's by James Blish.
They conducted you to your couch and helped you to fit over your head a bright metal helmet which had inside it what seemed to be hundreds of tiny, extremely sharp points which bit into your scalp just enought to make you nervous, but without enough pressure to break the skin.
(Read more about the accelerated learning helmet)
Scroll down for more stories in the same category. (Story submitted 1/26/2009)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
iFlytek Doctor Robot First To Pass Medical Exams
No problem, we'll just use the autodoc.
Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...' - Cordwainer Smith, 1958.
PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'
Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
A 'Genuine Nanorobotic Production Factory'
'Microscopic machinery, smaller than ants, smaller than pins, working energetically, purposefully - constructing something...'
Neuromorphic Computer Offers Non-von Neumann Architecture
Fires faster than brain at 1/10K energy.
Evorus Your Crowd-Powered Conversational Assistant
'...the DS [Daily Schedule] was suddenly transformed into a valued confidante.'
Mealworms Food Of The Future
Get your grubs on.
Alibaba's AI May Read Better Than You
'Mike ... could accept other languages and was doing technical translating - and reading endlessly.'
Musk's Boring Flamethrower
'Skeletons in tatters. Burned by a flesh gun'
Humanity Star LEO Advertisement?
'Everyone has noticed those enormous advertisements...'
Nissan ProPILOT Slippers Are Self-Parking, Autonomous
Beyond science and fiction.
Atomristors - Atomic Memristors - Using Thin Nanomaterials
'I could almost feel those little tunnel junction neuristors working, forming their own interconnections as I operated it.'
Bigelow Prepares Inflatable Lunar Hotel
'Suddenly, hitherto unheard-of sums of money became available for investment in civilian orbital stations.'
Drunk Driver Of Tesla Claims Autopilot Was In Charge
'Mr. Garden, you are in no condition to drive.'
Medical Exoskeleton From Cyberdyne Gets FDA Approval
It's been a long road for HAL-5; I started writing about it in 2005.
Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'
Shiftwear Display Shoes
'He unlaced her shoe and glanced at its readout.'
NASA SEXTANT First With X-Ray Nav In Space
'You need at least four beacons for an accurate fix.'
GM Introduces Cruise AV With No Steering Wheel
'How about the steering wheel?' ... 'I do not need one.'
More SF in the News Stories
More Beyond Technovelgy science news stories