HAT_Henry_talking_kitchen (IMAGE) Carnegie Mellon University Caption Henry Evans in his kitchen talking with Akhil Padmanabha and Janavi Gupta, researchers from Carnegie Mellon University's School of Computer Science who conducted an in-home test of Head-Worn Assistive Teleoperation (HAT) — an experimental interface to control a mobile robot. Evans, a person with quadriplegia, uses a letterboard, a tool that allows him to spell out words by looking at or pointing a laser at each letter, tom communicate. Credit Carnegie Mellon University Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.