Fig. 4. Apomorphine Challenge. Box plots are presented showing the number of clockwise rotations over 20 min made by animals in each group after apomorphine injection. Groups: Sham = sham preconditioning, sham hypoxia-ischemia; HI = sham preconditioning, hypoxia-ischemia; D = desflurane preconditioning, hypoxia-ischemia; I = isoflurane preconditioning, hypoxia-ischemia; S = sevoflurane preconditioning, hypoxia-ischemia. For Groups Sham, D, and S, the median value for number of rotations is zero. #  P < 0.05 compared to Group HI; ##  P < 0.01 compared to Group HI; ###  P < 0.001 compared to Group HI.