Wayne D. Gray is a researcher in the fields of computational cognitive modeling, interactive behavior, cognitive task analysis, cognitive workload, and human error. Since earning his Ph.D. from U. C. Berkeley he has worked for both government and industry laboratories, as well as universities. He is currently a Professor of Cognitive Science at Rensselaer Polytechnic Institute. Dr. Gray is a past Chair of the Cognitive Science Society and the founding Chair of the Human Performance Modeling technical group of the Human Factor & Ergonomics Society.