title: Effectiveness of morphine and ineffectiveness of diazepam and phenobarbital on the motivational properties of hypothalamic self-stimulation behaviour.
mesh_terms: D000818:Animals; D003975:Diazepam / Q000494:pharmacology*; D004558:Electric Stimulation; D007031:Hypothalamus / Q000502:physiology*; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009042:Motivation / Q000187:drug effects*; D010634:Phenobarbital / Q000494:pharmacology*; D051381:Rats; D012653:Self Stimulation; D013997:Time Factors
chemical_list: D009020:Morphine; D003975:Diazepam; D010634:Phenobarbital