(Right) A schematic of double-trial training inhibitory avoidance. Upon entering and exploring the light chamber within the inhibitory avoidance apparatus, a mouse is allowed to enter the dark chamber, after which a foot shock is administered. The training is repeated once more. Each training trial ends if the animal crosses or avoids the dark chamber for 120 s. (Left) Cross latency for the memory test (1 h). Cutoff latency set at 600 s. Bars represent median. P-values are from Dunn's multiple comparisons test following Kruskal-Wallis test.