Figure 1.

Timeline of all procedures performed. Stereotaxic surgery was performed to cannulae implantation into the PL-mPFC of all animals. After 1 week, the stressed groups were submitted to 2 h of restraint stress. The following morning, the animals received the intra-PL-mPFC injections and, after 10 min, were tested in the EPM. In experiment 2, the second injection was performed 5 min after the first one.