Fig. 5. Intraoperative schematic of eliciting and recording of corticobulbar motor-evoked potentials (CoMEPs). Lower left: schematic of positioning the stimulating electrode over the scalp. Upper left: schematic of the corticobulbar pathways innervating CMN (cranial nerves VII, IX, X, and XII). Middle: positioning the recording electrodes inserted in the orbicularis oris, pharyngeal, tongue, and vocal muscles (cranial nerves VII, IX, XII, and X, respectively) to monitor CoMEPs. To the right: typical examples of CoMEPs recorded from muscles innervated by cranial motor nerves. Fig. 5. Intraoperative schematic of eliciting and recording of corticobulbar motor-evoked potentials (CoMEPs). Lower left: schematic of positioning the stimulating electrode over the scalp. Upper left: schematic of the corticobulbar pathways innervating CMN (cranial nerves VII, IX, X, and XII). Middle: positioning the recording electrodes inserted in the orbicularis… J Clin Neurol. 2016 Jul;12(3):262-273. http://dx.doi.org/10.3988/jcn.2016.12.3.262