Fig. 3

Motor evoked potential (MEP) induced by increasing stimulus intensities. A MEP under wakefulness B MEP under anesthesia. “W” (solid line) denotes Wakefulness and “A” (dashed line) denotes Anesthesia C Peak-to-peak MEP amplitudes D SR based on linear fitting. E The slope of SR. Anesthesia inhibited the stimulus response of TMS. The data were expressed as mean ± standard error of the mean (SEM). *P < 0.05, ***P < 0.001, n.s.: no significance. The data satisfies the normality