Effect of acetylcholine on pain-related electric activities in hippocampal CA1 area of normal and morphinistic rats

摘要

ObjectiveTo examine the effect of acetylcholine (ACh) on the electric activities of pain-excitation neurons (PEN) and pain-inhibitation neurons (PIN) in the hippocampal CA1 area of normal rats or morphinistic rats, and to explore the role of ACh in regulation of pain perception in CA1 area under normal condition and morphine addiction.