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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Conf Proc IEEE Eng Med Biol Soc. 2011 Aug;2011:4705–4708. doi: 10.1109/IEMBS.2011.6091165

Fig. 1.

Fig. 1

Propofol concentration level in µg/ml (blue) and behavioral responses of click train stimuli (green) and verbal stimuli (purple). Height of stems represent reaction time of responses in sec. A response is denoted by a stem. An incorrect response is denoted by a stem with a cross at the tip.