Figure 2
From: Long days enhance recognition memory and increase insulin-like growth factor 2 in the hippocampus
Melanopsin signaling contributes to photoperiodic changes in recognition memory. L20 enhanced Spatial Object Recognition (SOR, A) and Novel Object Recognition (NOR, B) memory in wild-type mice, but not melanopsin knockout mice (SOR: Full Factorial ANOVA Photoperiod: F(1,1) = 6.55, p < 0.05, Genotype: F(1,1) = 1.27, p > 0.2, Photoperiod*Genotype: F(1,1) = 4.39, p < 0.05; NOR: Full Factorial ANOVA Photoperiod: F(1,1) = 1.56, p > 0.2, Genotype: F(1,1) = 0.04, p > 0.8, Photoperiod*Genotype: F(1,1) = 6.3, p < 0.05). Number at the base of each bar indicates sample size. *L12 versus L20, two sample Student’s t test, p < 0.05. + Differs from 0.5, one-sample Student’s t test, p < 0.05.
