Svebak S, Nordby H, Ohman A
Department of Somatic Psychology, University of Bergen, Norway.
Biol Psychol. 1987 Aug;25(1):1-9. doi: 10.1016/0301-0511(87)90063-9.
Forty healthy university students were recruited from a larger sample to form subgroups of seriousminded and playful Type A and Type B individuals according to their responses to the Telic Dominance Scale and Jenkins Activity Survey. The experiment made use of a factorial design and tested the hypothesis that cardiovascular reactivity during a continuous perceptual motor task is highest in individuals who are characterized by a combination of seriousmindedness and Type A behavior pattern. Relatively low levels of sympathetic reactivity were expected in playful Type B individuals. Heart rate (HR) and pulse transit time (PTT) scores from baseline and task performance periods supported the conclusions that: (1) Cardiovascular activation appeared during task performance; and that (2) seriousmindedness and Type A behavior exerted particularly significant additive effects upon HR, whereas Type A behavior showed a stronger association than did seriousmindedness with PTT scores. Analyses using pre-task score as covariate to task-scores, indicated stronger reactivity for HR in Type A than in Type B subjects.
从一个更大的样本中招募了40名健康的大学生，根据他们对目的主导量表和詹金斯活动调查的回答，组成了严肃型和活泼型的A型和B型个体亚组。该实验采用析因设计，检验了以下假设：在连续的感知运动任务中，具有严肃认真和A型行为模式相结合特征的个体心血管反应性最高。预计活泼型B型个体的交感反应水平相对较低。基线期和任务执行期的心率（HR）和脉搏传输时间（PTT）得分支持了以下结论：（1）任务执行期间出现了心血管激活；（2）严肃认真和A型行为对心率有特别显著的累加效应，而A型行为与PTT得分的关联比严肃认真更强。以任务前分数作为任务分数的协变量进行分析，结果表明A型受试者的心率反应性比B型受试者更强。
