Figure 3. Effects of intra-VTA muscimol on cocaine self-administration.
(A) Histological reconstruction showing cannulae tip placement. Numbers indicate coordinates relative to bregma (Paxinos & Watson, 1998). (B) Baseline dose-response functions demonstrating cocaine self-administration before and after intra-VTA muscimol injections. (C) Dose-response functions demonstrating cocaine self-administration baseline and cocaine self-administration following bilateral intra-VTA injection of muscimol.