THERAPIES that aim to rehabilitate stroke patients may be backfiring. Instead of helping people recover lost speech or movement, they could be making the problems worse.
That’s the conclusion of researchers who found that people who have had strokes were better able to recall words after they silenced parts of the brain that therapies stimulate.
Stroke is caused when a clot forms or a blood vessel ruptures in the brain, cutting off the blood supply and killing neurons within minutes. Although the dead cells are not replaced, people can still recover lost functions such as the ability to recall words.…
