Breier C, Kain H, Konzett H
Eur J Clin Pharmacol. 1983;25(4):535-8. doi: 10.1007/BF00542124.
Forearm blood flow was measured four times per minute by venous occlusion plethysmography during rest and during a brief emotionally stressful mental task. During emotional stress not only was the mean forearm blood flow increased, but the single blood flow values fluctuated more than at rest. The greater fluctuation, expressed statistically as the variance, was an indicator of emotional stress, at least as sensitive as the mean increase in the blood flow. Both a tranquillizer (thioridazine) and a beta-blocker (toliprolol) reduced the greater variance during the emotionally stressful situation in doses insufficient to diminish the mean increase in forearm blood flow.
在静息状态和一项简短的情绪应激心理任务期间，通过静脉阻塞体积描记法每分钟测量4次前臂血流量。在情绪应激期间，不仅前臂平均血流量增加，而且单次血流量值的波动也比静息时更大。从统计学上以方差表示的更大波动是情绪应激的一个指标，至少与血流量的平均增加一样敏感。一种镇静剂（硫利达嗪）和一种β受体阻滞剂（托利洛尔）在剂量不足以减少前臂血流量平均增加的情况下，均可降低情绪应激状态下的更大方差。
