1. Louisiana State University, Department of Psychology , Baton Rouge, LA , USA
2. Louisiana State University, Center for Computation and Technology , Baton Rouge, LA , USA
3. University of Tromsø—The Arctic University of Norway , Tromso , Norway
4. University of Colorado, Institute of Cognitive Science , Boulder, CO , USA
5. University of Colorado, Department of Computer Science , Boulder, CO , USA
6. University of Georgia, Department of Psychology , Athens, GA , USA