Figure 1.

Effects of post-training systemic injections of corticosterone (1.0 or 3.0 mg/kg, s.c.) on taste aversion as assessed on a 96-h retention test trial. (A) Experimental design. (B) Post-training injections of corticosterone enhanced retention of taste aversion. (C) Corticosterone administration did not induce saccharin aversion in rats that were pseudo-conditioned with saline (0.15 M NaCl) rather than LiCl. The aversion index (mean + SEM) is expressed as the percent saccharin consumption on the retention test as compared with that during acquisition. (*) P < 0.05 as compared with the vehicle (Veh) control group (n = 11–13 rats per group). (Cort) Corticosterone.