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    New Brain Implant Turns Visualized Letters into Text

    When we move, sense or speak—or do just about anything—our brain generates a specific pattern of electrical activity. And for decades, scientists have been connecting those impulses to machines, not only to understand and treat brain diseases but also to help people with disabilities. Brain-computer interfaces, or BCIs, can restore movement in people with paralysis and may help treat neurological and psychiatric diseases. The next frontier in BCIs may be things like the lowly text message; typing still poses maddeningly difficult challenges to bioengineers. A study published today in Nature reports on a brain implant that will allow people with  

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