Figure 1.

Effect of dim light at night on the ability of spatial learning and memory in mice. (A–C) Track plot of Y-maze test. (D) Schematic diagram of the Y-maze. (E) Number of arm entries in the Y-maze test in each group. (F) Alternation behavior in the Y-maze test in each group. The data are expressed as the mean ± SEM; n = 8 for each group. Values not sharing a common superscript letter (a,b,c) differ significantly at p < 0.05; those with the same letter (a,b,c) do not differ significantly (p ≥ 0.05). Ctrl: control group, dLAN-WL: dim white light at night group, dLAN-BL: dim blue light at night group.