It appeared therefore that centrally HRV inhibited remarkably the vasomotor centers of the medulla and hypothalamus, and peripherally it seemed to be sympatholytic to a certain extent. 从实验结果可以看出,HRV的中枢作用以对延脑及视丘下部血管运动中枢的抑制较为显著,周围作用则为一定程度的抗交感作用,与单纯的利血平有所不同。