A brain-computer interface allowed people with paralysis to type with their minds

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"... Two people with paralysis were able to type strokes on a virtual keyboard using an implant that decodes attempted finger movement, with one patient typing up to 80% as quickly as an able-bodied person, according to a new study. ..."

Experimental brain implant lets people type with their mind | STAT "The device helps patients type on a keyboard by decoding attempted finger movement"