Woodworth Michael, Porter Stephen
Department of Psychology, Dalhousie University, Halifax, Nova Scotia, Canada.
J Abnorm Psychol. 2002 Aug;111(3):436-45. doi: 10.1037//0021-843x.111.3.436.
This study investigated the relationship between psychopathy and the characteristics of criminal homicides committed by a sample of 125 Canadian offenders. It was hypothesized that the homicides committed by psychopathic offenders would be more likely to be primarily instrumental (i.e., associated with premeditation, motivated by an external goal, and not preceded by a potent affective reaction) or "cold-blooded" in nature, whereas homicides committed by nonpsychopaths often would be "crimes of passion" associated with a high level of impulsivity/reactivity and emotionality. The results confirmed these predictions; homicides committed by psychopathic offenders were significantly more instrumental than homicides by nonpsychopaths. Nearly all (93.3%) of the homicides by psychopaths were primarily instrumental in nature compared with 48.4% of the homicides by nonpsychopaths.
本研究调查了125名加拿大罪犯样本中精神病态与犯罪杀人特征之间的关系。研究假设，精神病态罪犯实施的杀人行为更有可能主要是工具性的（即与预谋有关，由外部目标驱动，且之前没有强烈的情感反应）或本质上是“冷血的”，而非精神病态者实施的杀人行为通常是与高度冲动/反应性和情绪化相关的“激情犯罪”。结果证实了这些预测；精神病态罪犯实施的杀人行为比非精神病态者实施的杀人行为更具工具性。精神病态者实施的杀人行为中，几乎所有（93.3%）本质上主要是工具性的，而非精神病态者实施的杀人行为这一比例为48.4%。
