About the Authors

Robert X. D. Hawkins

rxdh@stanford.edu

Affiliations Department of Psychology, Stanford University, Palo Alto, CA, United States of America, Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, United States of America

Robert L. Goldstone

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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