Identification of Brain Circuits that Mediate Improvements in Executive Function in Moderate to Severe Traumatic Brain Injury Patients Treated with Deep Brain Stimulation (DBS) - Matthew P. Hook; Nicholas D. Schiff; Brian K. Rutt; Jonathan D. Victor; Jonathan L. Baker; Manoj Saranathan; Amy Kuceyeski; Joseph T. Giacino; Sudhin A. Shah; Jaime M. Henderson; Christopher R. Butson (Neurotherapeutics)