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New Brain Sensor Lets Amputees Move Robotic Limbs

Robert Siegel speaks with Dr. Leigh Hochberg, neurologist and engineer at Brown University and the VA Medical Center in Providence, R.I. Hochberg is the lead author of a new study that looks at how paralyzed people are able to move robotic arms with their thoughts, due to a microchip that is implanted in their brains that sends neural signals to a computer.