Figure 6.

(A) VsEP latency (in µs), (B) amplitude (in µV), and (C) threshold (in dB) during ketamine–xylazine anesthesia. Normalized VsEP values are represented (difference from mean baseline) over time (minutes) for both O₂ supplementation treatment (black circles; n = 6) and nonsupplementation control (white circles; n = 6) groups. Actual mean baseline values for VsEP response parameters are presented in Table 1. Values are presented as mean ± 1 SD for each successive 20-min period after the baseline period (t = –20 to 0 min). Brain temperatures were not controlled, whereas rectal was maintained at 37.0 ± 0.2 °C.