title: Extinction of a passive avoidance response in adrenalectomized and demedullated rats.
mesh_terms: D000311:Adrenal Glands / Q000502:physiology*; D000313:Adrenal Medulla / Q000502:physiology; D000315:Adrenalectomy; D000818:Animals; D001362:Avoidance Learning; D004597:Electroshock; D004837:Epinephrine / Q000502:physiology*; D005106:Exploratory Behavior; D005108:Extinction, Psychological; D005239:Fear; D008297:Male; D009043:Motor Activity; D010902:Pituitary Gland / Q000502:physiology; D010913:Pituitary-Adrenal System; D051381:Rats; D011930:Reaction Time
chemical_list: D004837:Epinephrine