Differential needs of zinc in the CA3 area of dorsal hippocampus for the consolidation of contextual fear and spatial memories

Effects of the four treatments (ZnEDTA, AP5, ZnEDTA + AP5, and CaEDTA + AP5) administered immediately after the conditioning and measured 24 h later, during the test to the context (A) and 26 h later during the test to the sound in the modified context (B). Results are presented as mean ± SEM. (*) P < 0.05, (**) P < 0.01, (***) P < 0.001.