6-47.9) with eyes open to 28.6% (28.0-29.3) with eyes closing (p  less then  0.001). There was a significant positive correlation between EMG and PSI with eyes closed (p = 0.01) but not with eyes open, which was confirmed with linear regression analysis (p = 0.01). In awake volunteers, keeping eyes open induces significant changes to SedLine-der…[Read more]