Figure 3From: Entropy and bispectral index for assessment of sedation, analgesia and the effects of unpleasant stimuli in critically ill patients: an observational studyTime courses of response entropy and BIS-Index after sedation bolus. Black lines and red lines indicate stimulus (endotracheal suction) and no stimulus within 10 minutes of the sedation bolus. Dots are medians, and the error bars indicate the 25th and 75th percentiles. The asterisk denotes a significant difference (P < 0.05) between the groups at 10 minutes. RE, response entropy.Back to article page