About the Authors

Kevin P Keegan

Affiliation Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois, United States of America

Suraj Pradhan

Affiliation Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois, United States of America

Ji-Ping Wang

Affiliation Department of Statistics, Northwestern University, Evanston, Illinois, United States of America

Ravi Allada

To whom correspondence should be addressed. E-mail: r-allada@northwestern.edu

Affiliation Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

KPK performed all analyses on the original and compiled datasets, authored all software (with the exception of the autocorrelation [authored by SP] and the McDonald correlation routines) to accomplish this end, and was the principal author of this text. SP performed the RT-PCR–based experiments, was the author of the autocorrelation routine, and offered comments on the text. JPW provided guidance in the selection and implementation of appropriate statistical tests and offered comments on the manuscript. RA provided supervision and guidance for the project, and helped to author the manuscript.