Fig. 9. Typical changes in the midlatency auditory evoked potential in a volunteer given 0-, 1-, and 2-μg/ml target concentrations of propofol who lost consciousness at a target propofol concentration of 2 μg/ml. Each point represents one assessment. (Redrawn with permission from Iselin-Chaves IA, El Moalem HE, Joo Gan TJ, Ginsberg B, Glass PS: Changes in the auditory evoked potentials and the Bispectral Index following propofol or propofol and alfentanil. Anesthesiology 2000; 92:1300–10.)

Fig. 9. Typical changes in the midlatency auditory evoked potential in a volunteer given 0-, 1-, and 2-μg/ml target concentrations of propofol who lost consciousness at a target propofol concentration of 2 μg/ml. Each point represents one assessment. (Redrawn with permission from Iselin-Chaves IA, El Moalem HE, Joo Gan TJ, Ginsberg B, Glass PS: Changes in the auditory evoked potentials and the Bispectral Index following propofol or propofol and alfentanil. Anesthesiology 2000; 92:1300–10.)

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