Figure 1.

Effects of rimonabant and Δ⁹-tetrahydrocannabinol (Δ⁹-THC), alone and in combination, on responding for food presentation (left) and stimulus-shock termination (SST; right). Abscissae: vehicle (VEH) or i.v. dose of Δ⁹-THC in mg·kg⁻¹ body weight. Ordinates: mean (±SEM) rate of responding expressed as a percentage of control. Points above VEH represent the average response rate after vehicle or a dose (0.32-3.2 mg·kg⁻¹, i.v.) of rimonabant alone. Rimonabant (0.32-3.2 mg·kg⁻¹) was administered prior to cumulative doses of Δ⁹-THC.