Fig. 1.

Mean (+SEM) distance travelled in cm for each group during the last 5-min of a 1-h habituation session (designated as “baseline” on the far left of the graph) and during the 60-min immediately following i.p. injection of cocaine (15 mg/kg). All animals were pretreated with one of four doses of the DA antagonist cis-flupenthixol (0.0, 0.125, 0.25, or 0.5 mg/kg/ml) 2-h prior to habituation and 3-h hours prior to cocaine administration.