About the Authors

Timothy E Holy, Zhongsheng Guo
Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Corresponding Author

holy@wustl.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

TEH conceived the experiments. TEH and ZG designed the experiments, built the custom hardware, and wrote the software. ZG collected the data. TEH analyzed the data and wrote the paper.