title: Correlation between retention of defensive conditioned reflexes and brain acetylcholinesterase activity in rats.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000110:Acetylcholinesterase / Q000378:metabolism*; D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D001921:Brain / Q000201:enzymology*; D003214:Conditioning, Classical / Q000502:physiology*; D006624:Hippocampus / Q000201:enzymology; D008297:Male; D008568:Memory / Q000502:physiology*; D009044:Motor Cortex / Q000201:enzymology; D051381:Rats; D012153:Retention, Psychology / Q000502:physiology*; D014793:Visual Cortex / Q000201:enzymology
chemical_list: D000110:Acetylcholinesterase; D000109:Acetylcholine