About the Authors

Eric Robinson

e.robinson@bham.ac.uk

Affiliation School of Psychology, University of Birmingham, Birmingham, United Kingdom

Suzanne Higgs

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ER SH. Performed the experiments: ER. Analyzed the data: ER SH. Wrote the paper: ER SH.