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A brain-computer interface, surgically placed in a research participant with tetraplegia, paralysis in all four limbs, provided an unprecedented level of control over a virtual quadcopter—just by thinking about moving his unresponsive fingers.
The technology divides the hand into three parts: the thumb and two pairs of fingers (index and middle, ring and small). Each part can move both vertically and horizontally. As the participant thinks about moving the three groups, at times simultaneously, the virtual quadcopter responds, maneuvering…