About the Authors

Jeremy D. W. Greenlee

jeremy-greenlee@uiowa.edu

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Adam W. Jackson

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Fangxiang Chen

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Charles R. Larson

Affiliation Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois, United States of America

Hiroyuki Oya

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Hiroto Kawasaki

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Haiming Chen

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Matthew A. Howard III

Affiliation Department of Neurosurgery, University of Iowa, Iowa City, Iowa, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JDWG CRL MAH. Performed the experiments: JDWG AWJ FC CRL HC. Analyzed the data: JDWG AWJ FC. Contributed reagents/materials/analysis tools: JDWG CRL HO HK HC. Wrote the paper: JDWG AWJ FC CRL MAH. Did all image processing and electrode localization: HO. Implanted all electrodes: HK. Assisted with data acquisition and hardware technical support: HC. Assisted with software development: HO HK.