Why Yong Peng, Bishop George D, Tong Eddie M W, Diong Siew Maan, Enkelmann Hwee Chong, Khader Majeed, Ang Jansen
Department of Social Work and Psychology, National University of Singapore, 11 Law Link, 117570 Singapore.
Int J Psychophysiol. 2003 Aug;49(2):99-110. doi: 10.1016/s0167-8760(03)00082-5.
This research examined hemodynamic processes in cardiovascular reactivity (CVR) as a function of task, ethnicity and trait hostility.
One hundred and fourteen male patrol officers from the Singapore Police Force participated in this experimental study. Trait hostility was measured using the interpersonal hostility assessment technique to derive a hostile behavior index (HBI). Heart rate, blood pressure and hemodynamic measures were taken while participants performed three tasks: mental arithmetic, number reading and anger recall (AR).
AR elicited the greatest blood pressure, vascular and cardiac output reactivity. HBI scores were positively related to systolic blood pressure reactivity during AR for Malays whereas this was not true for Indians and Chinese. Across tasks Indians with high HBI scores appeared to be cardiac reactors whereas the reactivity patterns for Malays and Chinese were undifferentiated. Self-report of negative mood was not related to CVR.
These results are consistent with the higher rates of coronary heart disease deaths among Indians as well as the higher rates for hypertension among Malays in Singapore.
本研究考察了心血管反应性（CVR）中的血流动力学过程，将其作为任务、种族和特质敌意的函数。
114名来自新加坡警察部队的男性巡逻警官参与了这项实验研究。使用人际敌意评估技术测量特质敌意，以得出敌意行为指数（HBI）。在参与者执行三项任务时测量心率、血压和血流动力学指标：心算、数字阅读和愤怒回忆（AR）。
AR引发了最大的血压、血管和心输出量反应。对于马来人，HBI得分与AR期间的收缩压反应呈正相关，而对于印度人和中国人则不然。在各项任务中，HBI得分高的印度人似乎是心脏反应者，而马来人和中国人的反应模式没有差异。负面情绪的自我报告与CVR无关。
这些结果与新加坡印度人较高的冠心病死亡率以及马来人较高的高血压发病率一致。
