About the Authors

Mark Atkinson

m.d.atkinson@sms.ed.ac.uk

Affiliation Language Evolution and Computation Research Unit, School of Philosophy, Psychology and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom

Simon Kirby

Affiliation Language Evolution and Computation Research Unit, School of Philosophy, Psychology and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom

Kenny Smith

Affiliation Language Evolution and Computation Research Unit, 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: MA SK KS. Performed the experiments: MA. Analyzed the data: MA. Wrote the paper: MA.