movements were evoked from four physiologically defined cortical regions : the primary face motor cortex ( mi ) , the primary face somatosensory cortex ( si ) , the principal part of the cortical masticatory area ( cmap ) which was located in the precentral gyrus lateral to mi , and a deep part of the cortical masticatory area ( cmad ) which was located in the inferior face of the frontal operculum .
C3495441
primary
C0152299
precentral