About the Authors

Gary C. Sing

Affiliation School of Engineering & Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America

Maurice A. Smith

mas@seas.harvard.edu

Affiliation Center for Brain Science, School of Engineering & Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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