About the Authors

William T. Wojtach

wtw3@duke.edu

Affiliation Center for Cognitive Neuroscience, Department of Neurobiology, Duke University, Durham, North Carolina, United States of America

Kyongje Sung

Affiliation Center for Cognitive Neuroscience, Department of Neurobiology, Duke University, Durham, North Carolina, United States of America

Dale Purves

Affiliation Center for Cognitive Neuroscience, Department of Neurobiology, Duke University, Durham, North Carolina, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WTW KS DP. Performed the experiments: WTW KS DP. Analyzed the data: WTW KS DP. Wrote the paper: WTW KS DP.