About the Authors

David E. Lewis

dave37@gmail.com

Affiliations The School of Psychology, The University of New South Wales, Sydney, Australia, The School of Optometry and Vision Science, The University of New South Wales, Sydney, Australia

Joel Pearson

Affiliation The School of Psychology, The University of New South Wales, Sydney, Australia

Sieu K. Khuu

Affiliation The School of Optometry and Vision Science, The University of New South Wales, Sydney, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DL SK. Performed the experiments: DL. Analyzed the data: DL. Wrote the paper: DL JP SK.