Mind-controlled hand movement tested in paralyzed patient

This study tested whether a person with arm and hand paralysis from a spinal cord injury could control hand movements using their own brain signals. The participant had already received a brain implant as part of another study. Small electrodes placed in the arm and hand delivered electrical pulses to activate muscles, allowing the person to form different grasp patterns in virtual reality and in real life. The goal was to restore useful hand function, not to cure the paralysis.