About the Authors

Lucy G. Cheke

Affiliation Department of Experimental Psychology, University of Cambridge, Cambridge, United Kingdom

Elsa Loissel

Affiliation Department of Experimental Psychology, University of Cambridge, Cambridge, United Kingdom

Nicola S. Clayton

nsc22@cam.ac.uk

Affiliation Department of Experimental Psychology, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LGC EL NSC. Performed the experiments: EL. Analyzed the data: LGC. Contributed reagents/materials/analysis tools: LGC NSC. Wrote the paper: LGC.