Figure 8.
Group means (± s.e.m) total or total number per 0.2 mm2 (prelimbic) of pERK1/2 positive cells measured in different limbic nuclei after systemic vehicle (VEH) or amphetamine (AMPH) administration in different group of animals that were injected intra-VM during the training phase with VEH, 1.5 nmol/side of D-Tyr[11]Neurotensin (NT), 120 pmol/side of CPP with or without NT (CPP + NT and CPP), or 1200 pmol/side of Ro04-5595 with or without NT (Ro + NT). Stars indicate a statistically significant difference with the VEH (**p < 0.01; ***p < 0.001) for the VEH and NT pr-injected groups. See legend of figure 7 and text for details.