Fig. 3. (A–C ) Raw data for (no) response to eyelash reflex for Bispectral Index (BIS), A-Line ARX index (AAI), and propofol effect-site concentration (Ce). (D–F ) Raw data for (no) response to noxious stimulus for BIS, AAI, and propofol effect-site concentration. *P < 0.05 for each group between the responsive and nonresponsive states. Data from the 0 ng/ml remifentanil (Remi) group are presented as black circles , data from the 2 ng/ml remifentanil group as white circles , and data from the 4 ng/ml remifentanil group as black triangles .