Figure 2.

The effects of the CCK₁ receptor antagonist devazepide (0.5 mg kg⁻¹, i.v.) on depressor, bradycardic and neuronal inhibitory responses to PBG (2 and 10 μg kg⁻¹, i.v.) and CCK (1 and 4 μg kg⁻¹, i.v.). Open bars, predevazepide; filled bars, postdevazepide. All values are expressed as mean±s.e.m. for n=5 experiments (one neuron was studied per experiment). Abbreviations: ΔFR, change in neuronal firing rate; ΔHR, change in heart rate; ΔMAP, change in mean arterial blood pressure.