About the Authors

Denis G. Pelli

To whom correspondence should be addressed. E-mail: denis.pelli@nyu.edu

Affiliation Psychology and Neural Science, New York University, New York, New York, United States of America

Katharine A. Tillman

Affiliation Psychology and Neural Science, New York University, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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