BA and MD, Johns Hopkins University, with training in surgery. Researcher in sensorimotor neurophysiology and implantable electronic medical devices. Formerly: Section Chief, US National Institutes of Health; Professor of Physiology, Queen's University, Canada; Chief Scientist, Advanced Bionics Corp. Currently: Professor of Biomedical Engineering, University of Southern California; Chief Executive Officer, SynTouch; Chief Scientist, MicroNuronix; President, Biomed Concepts. Author of more than 250 journal articles. Inventor on 58 issued US patents.