Figure 2.
Dose–response graph for the number of infusions averaged over the first four sessions for the self-infusion of 100–400 mg% EtOH into non-VTA sites (a); 0, 75, 100, 150, 200, 250, 300, and 400 mg% EtOH into the posterior VTA (b); and 0, 100, 200, 300, or 400 mg% EtOH into the anterior VTA of male Wistar rats (c). The asterisks indicate that the number of infusions administered is significantly greater (p < 0.05) than aCSF. Data are the means ± SEM; for non-VTA sites, n = 6; for posterior VTA, n = 6–8/dose; and for anterior VTA, n = 6–7/dose.