“This is very exciting,” says Jason Carmel, a motor system neuroscientist at Columbia University who wasn’t involved in the study. “It opens up a potential treatment avenue that we’ve never had before for people with chronic stroke.”
Stroke is the most common cause of disability in adults. Worldwide, one in four people over the age of 25 will suffer one in their lifetime, and three-quarters of them will have lasting motor deficits in their arm and hand.
A stroke happens when blood supply in the brain is blocked or when a blood vessel bursts. Depending on the severity of the brain damage and where it
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