About the Authors

Michael E. Roberts


Affiliation Department of Psychology, DePauw University, Greencastle, Indiana, United States of America

Robert L. Goldstone

Affiliation Psychological and Brain Sciences Department, Indiana University, Bloomington, Indiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MER RLG. Performed the experiments: MER RLG. Analyzed the data: MER RLG. Contributed reagents/materials/analysis tools: MER RLG. Wrote the paper: MER RLG. Designed the software for the experiment: MER RLG.