About the Authors

Arthur Shapiro

Arthur.Shapiro@American.edu

Affiliation Department of Psychology, American University, Washington, D. C., United States of America

Zhong-Lin Lu

Affiliation Department of Psychology, University of Southern California, Los Angeles, California, United States of America

Chang-Bing Huang

Affiliation Department of Psychology, University of Southern California, Los Angeles, California, United States of America

Emily Knight

Affiliation Mayo Clinic, Rochester, Minnesota, United States of America

Robert Ennis

Affiliation SUNY College of Optometry, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AGS ZLL. Performed the experiments: CBH. Analyzed the data: AGS ZLL EJK RE. Contributed reagents/materials/analysis tools: EJK RE. Wrote the paper: AGS ZLL.