title: Effects of morphine on visual evoked responses recorded in five brain sites.
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects*; D002421:Caudate Nucleus / Q000187:drug effects; D005071:Evoked Potentials / Q000187:drug effects; D005829:Geniculate Bodies / Q000187:drug effects; D008297:Male; D009020:Morphine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology; D010775:Photic Stimulation; D051381:Rats; D012154:Reticular Formation / Q000187:drug effects
chemical_list: D009270:Naloxone; D009020:Morphine