title: Overtraining reduces morphine abolition of classically conditioned responses.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects; D003214:Conditioning, Classical / Q000187:drug effects*; D003215:Conditioning, Eyelid / Q000187:drug effects; D005239:Fear / Q000187:drug effects; D008297:Male; D011939:Mental Recall / Q000187:drug effects; D009020:Morphine / Q000494:pharmacology*; D010056:Overlearning / Q000187:drug effects*; D011817:Rabbits
chemical_list: D009020:Morphine