Foulds J, Wiedmann K, Patterson J, Brooks N
Department of Psychological Medicine, University of Glasgow, Scotland.
Behav Res Ther. 1990;28(6):481-6. doi: 10.1016/0005-7967(90)90134-5.
This study aimed to assess whether (1) a muscle tensing procedure which has been found to be useful in the treatment of blood-phobic patients produces an increase in heart rate and cerebral blood flow and (2) whether this increase is greater than that produced by mental effort alone. Subjects were 17 volunteers with a history of fainting in response to blood-injury stimuli, (12 were phobic) and 8 volunteers with no fainting history. They were required to (a) rest, (b) do mental arithmetic, and (c) repeatedly tense and release their arm and leg muscles. It was found that Ss, heart rate and cerebral blood flow velocity were significantly greater during the muscle tensing procedure than during mental arithmetic or resting conditions. The increased cerebral blood flow produced by muscle tensing may enable blood phobic patients to prevent fainting during exposure treatment.
（1）已被发现对血液恐惧症患者治疗有效的肌肉紧张程序是否会导致心率和脑血流量增加；（2）这种增加是否大于仅通过脑力活动所产生的增加。受试者包括17名有因血液-损伤刺激而昏厥病史的志愿者（其中12名有恐惧症）以及8名无昏厥病史的志愿者。他们被要求：（a）休息；（b）做心算；（c）反复紧张和放松手臂及腿部肌肉。结果发现，在肌肉紧张程序期间，受试者的心率和脑血流速度显著高于心算或休息状态。肌肉紧张所产生的脑血流量增加可能使血液恐惧症患者在暴露治疗期间预防昏厥。
