Fig. 2
From: Different mechanisms underlie compulsive alcohol self-administration in male and female rats
Male and female rats do not differ in alcohol self-administration when corrected for body weight, but males show a higher motivation to self-administer alcohol. A Mean reinforcers (± SEM) and B mean of alcohol (g/kg) (± SEM) earned during a 30-min alcohol 20% FR2 self-administration). C Mean break points (± SEM) reached during a progressive ratio session of 11% alcohol in male and female rats. **p < 0.01, ***p < 0.001