Fig. 4.

Effects of 18-MC (10, 20, and 40 mg/kg i.p.) on the consumption of saline (a) and water (b) during the baseline session, postinjection session, and a recovery session (mean±SEM). “Averaged baseline” was calculated based on responses for 19 h sessions on day 1 and day 2; the averaged baselines were as follows (mean±SEM): 34.1±3.8, 37.2±4.0, 43.0±6.8, and 46.3±7.3 for 0, 10, 20, and 40 mg/kg of 18-MC, respectively. *p<0.05, significant difference between drug vs. baseline, Fisher LSD tests