October 11, 2011
In this photo made Wednesday, Sept. 21, 2011, assistant professor Jennifer Collinger, left, watches as quadriplegic research subject Tim Hemmes operates the mechanical prosthetic arm in a testing sessions at a University of Pittsburgh Medical Center research facility in Pittsburgh. Hemmes had a chip implanted on the surface of his brain that reads his intention to move his paralyzed arm and sends that instruction instead to an advanced bionic arm. The goal is to create mind-controlled prosthetics to restore some independence to the paralyzed.
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Giving a high-five. Rubbing his girlfriend's hand. Such ordinary acts — but a milestone for a paralyzed man. True, a robotic arm parked next to his wheelchair did the touching, painstakingly, palm to palm. But Tim Hemmes made that arm move just by thinking about it.
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