Fig. 1.
Rimonabant disrupts extinction of a conditioned freezing response. Mice that were administered rimonabant (3 mg/kg) failed to extinguish freezing to a 3-min tone, which had been paired with foot shock on the preceding day. *p<0.05 and **p<0.01 for the rimonabant-treated group compared to the vehicle-treated group at the same time point; #p<0.05 for the vehicle group at the third minute compared to the first minute. Results shown as mean time spent immobile±SEM; n=8 mice per group