Figure 3.

Short-term memory in mice tested by novel object recognition. (a) FDI; (b) TDI; CON: control; VDD: vitamin D-deficient diet; VDD + FA/VB₁₂: vitamin D-deficient diet plus folic acid/vitamin B₁₂ supplement; VDD + VD: vitamin D-deficient diet plus vitamin D supplement; VDD + VD-FA/VB₁₂: vitamin D-deficient diet plus vitamin D and folic acid/vitamin B₁₂; FDI: frequency discrimination index; TDI: time discrimination index. All data are presented as the mean ± SEM (n = 8). A two-sided p < 0.05 was considered statistically significant.