About the Authors

Christine A. Caldwell


Affiliation Psychology, School of Natural Sciences, University of Stirling, Stirling, United Kingdom

Kenny Smith

Affiliation School of Philosophy, Psychology, and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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