About the Authors

Paula Chesley

pchesley@ualberta.ca

Affiliation Department of Linguistics, University of Alberta, Edmonton, Alberta, Canada

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

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