About the Authors

Chien-Chung Chen


Affiliations Department of Psychology, National Taiwan University, Taipei, Taiwan, Center for Neurobiology and Cognitive Science, National Taiwan University, Taipei, Taiwan

Christopher W. Tyler

Affiliation The Smith-Kettlewell Eye Research Institute, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CCC CWT. Performed the experiments: CCC. Analyzed the data: CCC. Wrote the paper: CCC CWT.