title: Mechanisms of classical conditioning and fixation in spinal mammals.
mesh_terms: D000818:Animals; D001933:Brain Stem / Q000502:physiology; D002415:Cats; D003214:Conditioning, Classical / Q000502:physiology*; D004285:Dogs; D005108:Extinction, Psychological / Q000502:physiology; D007395:Interneurons / Q000502:physiology; D008322:Mammals / Q000502:physiology*; D008568:Memory / Q000502:physiology*; D009046:Motor Neurons / Q000502:physiology; D011506:Proteins / Q000378:metabolism; D012153:Retention, Psychology / Q000187:drug effects / Q000502:physiology*; D013116:Spinal Cord / Q000378:metabolism / Q000502:physiology*; D013376:Substantia Gelatinosa / Q000502:physiology
chemical_list: D011506:Proteins