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Magnetic Brain Stimulation Improves Skill Learning, Study Finds

Date:
July 7, 2009
Source:
BioMed Central
Summary:
The use of magnetic pulses to stimulate the dorsal premotor cortex region of the brain results in an improved ability to learn a skilled motor task, a new study finds. Researchers show that skilled movements can be stored as memories in the PMd and that magnetic stimulation of this area can facilitate this learning process.

The use of magnetic pulses to stimulate the dorsal premotor cortex (PMd) region of the brain results in an improved ability to learn a skilled motor task. Researchers show that skilled movements can be stored as memories in the PMd and that magnetic stimulation of this area can facilitate this learning process.

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Lara Boyd and Meghan Linsdell, from the University of British Columbia, studied the effect of transcranial magnetic stimulation of the PMd on the ability of 30 volunteers to track a target on a computer screen using a joystick. During the task, the target would move randomly, then enter a programmed pattern and finally return to moving randomly. The participants were not aware of the repeated section, believing that movements were random throughout.

The volunteers received four days of training, during which they were either given excitatory stimulation, inhibitory stimulation or sham stimulation immediately before practicing the motor task. The volunteers were not aware which group they were in. On the fifth day, they were tested to see how well they had learned the task. By comparing the improvements between the random and repeated sections of the task, the researchers were able to separate the general improvement due to practice from the learned motor memory of the repeated section.

Those participants who had received the excitatory stimulation were significantly better than the other groups at tracking the target during the repeated section of the test. They showed no significant difference in improvement during the random sections. The researchers conclude, "Our data support the hypothesis that the PMd is important for continuous motor learning, specifically via off-line consolidation of learned motor behaviors".


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The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Journal Reference:

  1. Lara A Boyd and Meghan A Linsdell. Excitatory repetitive transcranial magnetic stimulation to left dorsal premotor cortex enhances motor consolidation of new skills. BMC Neuroscience, (in press) [link]

Cite This Page:

BioMed Central. "Magnetic Brain Stimulation Improves Skill Learning, Study Finds." ScienceDaily. ScienceDaily, 7 July 2009. <www.sciencedaily.com/releases/2009/07/090706192043.htm>.
BioMed Central. (2009, July 7). Magnetic Brain Stimulation Improves Skill Learning, Study Finds. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2009/07/090706192043.htm
BioMed Central. "Magnetic Brain Stimulation Improves Skill Learning, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2009/07/090706192043.htm (accessed October 24, 2014).

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