CAV2 and infection: We found that continuously yellow light (590 nm) stimulation in the “on” session had no effect on the hind paw withdrawal thresholds in normal Ai35 mice with CAV2-cre infection (Ai35+cre) (left paw: off, 0.41 ± 0.05 g; on, 0.39 ± 0.08 g, p > 0.05; right paw: off, 0.42 ± 0.07 g; on, 0.41 ± 0.08 g, p > 0.05, n = 5 mice), neither in normal Ai35 mice without CAV2-cre infection (Ai35-cre) (left paw: off, 0.41 ± 0.04 g; on, 0.43 ± 0.08 g, p > 0.05; right paw: off, 0.38 ± 0.05 g; on, 0.39 ± 0.08 g, p > 0.05, n = 5 mice) (Fig. 10g).