Dr. Robert W. Holt is Professor at the Human Factors and Applied Cognition Laboratory, George Mason University, Fairfax, Virginia, USA. He has pursued group and individual research over several years culminating in pilot/crew research with the FAA. This text combines his psychological research and computer science applications training with the FAA research experiences. He obtained an MS in Computer Science from Virginia Tech in 1990, specializing in modeling and artificial intelligence, and received his Ph.D. from the University of Illinois in Social and Quantitative Psychology.