About the Authors

Vassilios N. Christopoulos

vchristo@cs.umn.edu

Affiliation Department of Computer Science and Engineering, University of Minnesota, Twin Cities, Minneapolis, Minnesota, United States of America

Paul R. Schrater

Affiliations Department of Computer Science and Engineering, University of Minnesota, Twin Cities, Minneapolis, Minnesota, United States of America, Department of Psychology, University of Minnesota, Twin Cities, Minneapolis, Minnesota, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VNC PRS. Performed the experiments: VNC. Analyzed the data: VNC PRS. Contributed reagents/materials/analysis tools: VNC PRS. Wrote the paper: VNC PRS.