Responding for sucrose on a PR schedule (motivation for sucrose)
In Experiment 3, females responded at a higher rate than males in both training (FR and then PR) and testing (PR). LY379268 (0, 1.5, 3, 6 mg/kg; IP; 30-minute pretreatment) decreased active lever responses after the 3, 6, but not 1.5 mg/kg doses compared to the 0 dose. Grouped data are presented as estimated marginal mean ± SEM. * main effect of sex or significant sex difference at that Day of Training, p<0.05; * main effect vs. 0 dose of Testing, p<0.05.