Stimulating the brain -- without invasive needles -- could help stroke patients regain more of their speech, a new study finds.

Many stroke victims lose the ability to speak and suffer paralysis because of damage done to their brain cells. Eventually, though, they regain some function when their neurons reorganize themselves.

Researchers at the University of Pennsylvania Medical School studied stroke patients who had reached a plateau in their language development but showed signs of frustration that they couldn't communicate more.

They conducted language tests to determine which areas of the brain were struggling, then used magnetic stimulation to re-activate cells.

The study found that patients experienced an immediate improvement and could extend their language skills.

The study was published in the Journal of Visualized Experiments.

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