title: Attenuation of baroreflexes during operant cardiac conditioning.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D008253:Macaca mulatta; D008297:Male; D005996:Nitroglycerin / Q000494:pharmacology; D010656:Phenylephrine / Q000494:pharmacology; D011311:Pressoreceptors / Q000187:drug effects / Q000502:physiology*
chemical_list: D010656:Phenylephrine; D005996:Nitroglycerin