This study was designed to observe the effect of PNS on HR and HRV when the vagosympathetic trunks were stimulated without the influence of humor and temperature and analyzed the potential mechanism .

本研究旨在去除体液、体温等 多种因素的影响， 通过 电刺激 迷走交感干，观察迷走神经对HR和 HRV的影响，探讨 迷走神经对HRV的调节机制。