title: Stressor controllability and stress-induced analgesia.
mesh_terms: D000698:Analgesia; D000818:Animals; D001362:Avoidance Learning; D004597:Electroshock; D007278:Injections, Spinal; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000494:pharmacology; D009271:Naltrexone / Q000494:pharmacology; D010146:Pain / Q000503:physiopathology; D051381:Rats; D012149:Restraint, Physical; D012684:Sensory Thresholds; D013312:Stress, Physiological / Q000503:physiopathology*; D013997:Time Factors
chemical_list: D009270:Naloxone; D009271:Naltrexone; D009020:Morphine