Localization of executive motor functions by cortical electrical stimulation

Objectives: The lateral and medial aspect of the central and frontal cortex were studied by electrical stimulation in epilepsy surgery candidates in order to determine the topography and somatotopic distribution of areas harboring negative motor areas (NMA). NMA were defined as cortex whose electrical stimulation elicits inability to maintain or initiate voluntary movements. Methods: Results of electrical stimulation of the cortex were evaluated in a total of 115 patients in whom invasive electrodes were implanted for planning resective epilepsy surgery at the University of Munich Epilepsy Center. Exact localiza…