title: Morphine and its biphasic influence upon pharmacologically distinct dopaminergic systems within the feline caudate nucleus: a behavioural study.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D002415:Cats; D002421:Caudate Nucleus / Q000187:drug effects*; D004298:Dopamine / Q000502:physiology*; D005260:Female; D006220:Haloperidol / Q000494:pharmacology; D006801:Humans; D007276:Injections, Intraventricular; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D013239:Stereotyped Behavior / Q000187:drug effects; D013997:Time Factors
chemical_list: D009020:Morphine; D006220:Haloperidol; D004298:Dopamine