Brain stimulation might help some functions and hurt others

http://www.technologyreview.com/news/511916/brain-boosting-technique-might-help-some-functions-while-hurting-others/

Electrically stimulating the brain may improve memory, but impede with a person’s ability to react without thinking.

The approach has previously been shown to enhance various brain functions, including working memory and attention, and is being used to help stroke patients regain lost language and motor skills (see “Repairing the Stroke-Damaged Brain”). But until now, little research had been done on whether improving performance on one task would come at the detriment of others.

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