Gregory Clark, University of Utah (IMAGE) University of Utah Caption University of Utah bioengineering associate professor Gregory Clark sits in front of computer monitors showing off a virtual hand that can be moved via the tiny Utah Slanted Electrode Array, an implantable interface that allows an amputee to move an advanced prosthetic hand with just his or her thoughts. U researchers have done earlier studies in which human volunteers were able to move the virtual hand via the array. Credit University of Utah College of Engineering Usage Restrictions None License Licensed 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.