Figure 1.

The site of intra-hippocampal microinjections. (a) Summary of the site of microinjection in the hippocampal CA3 region. Mice in which the cannulae were found to be misplaced were excluded. (b) Drug administration site confirmed by the infusion of 0.1 μl of 1% Evans Blue into the hippocampus after behavioral testing (coordinates: anteroposterior −2.10 mm from bregma; mediolateral ±2.50 mm from midline; and dorsoventral −2.00 mm from dura).