University of Utah doctoral student Jacob George, left, and associate professor Greg Clark examine the LUKE Arm that they use for their experiments. A man who lost his lower arm in an electrical accident was able to experience some sense of touch and fine motor control with his grip while using the experimental device.

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University of Utah doctoral student Jacob George, left, and associate professor Greg Clark examine the LUKE Arm that they use for their experiments. A man who lost his lower arm in an electrical accident was able to experience some sense of touch and fine motor control with his grip while using the experimental device