Fig. 3.
Sex differences in meth intake (mg/kg) during limited or extended meth access conditions. A) Meth intake of males and females over the first 7 days of 1 hr/day access, followed by 14 days of either 1 hr or 6 hr/day access. B) Meth intake during the first hour of the 6-hr meth access period for males and females. C) Meth intake of males and females in the 1-hr access condition. Significant sex differences are indicated (*p<0.05).