sentences:  More research must be done, but recent studies strongly suggest that decreased activity in the brainstem correlates with decreased frequency of OMTs.Several methods of recording have been developed to observe these minuscule events, the most successful being the piezoelectric strain gauge method, which translates eye movement through a latex probe in contact with the eye leading to piezoelectric strain gauge.This method is used in research settings; more practical adaptations of this technology have been developed for use in clinical settings to monitor the depth of anesthesia.