Footshock-analgesia: prevention by behavioural manipulation but not by naloxone.
D000374:Aggression / Q000502:physiology*; D000698:Analgesia; D000818:Animals; D004597:Electroshock; D006801:Humans; D008297:Male; D009270:Naloxone / Q000494:pharmacology*; D051381:Rats
D009270:Naloxone