sentences:  It was found that in normal subjects unilateral TMS stimulation of the motor cortex induced EMG responses from the perioral muscles.This finding supports other studies in favor that bilateral projection of the corticonuclear fibers of the lower facial muscles are present in humans and primates with normal function.The study also found that ipsilateral corticonuclear fibers were found in the lower facial muscles, which does not coincide with other papers.