1. Department of Computer Science, George Mason University, Fairfax, VA, USA
2. Department of Computer Science and the Center for Adaptive Systems and Brain-Body Interactions, George Mason University, Fairfax, VA, USA
3. Department of Bioengineering and the Center for Adaptive Systems and Brain-Body Interactions, George Mason University, Fairfax, VA, USA
4. MITRE Corporation, McLean, Virginia, USA
5. College of Public Health and the Center for Adaptive Systems and Brain-Body Interactions, George Mason University, Fairfax, Virginia, USA