Laajasalo Taina, Häkkänen Helinä
Department of Psychology, University of Helsinki, Finland.
Crim Behav Ment Health. 2006;16(4):242-53. doi: 10.1002/cbm.635.
It is not currently known how psychotic symptoms are associated with the nature of violence among homicide offenders with schizophrenia, or, more specifically, whether different psychotic symptoms are differentially linked with excessive violence.
To identify factors associated with the use of excessive violence among homicide offenders with schizophrenia.
Forensic psychiatric examination statements and Criminal Index File data of 125 consecutive Finnish homicide offenders with a diagnosis of schizophrenia were analysed.
Nearly one-third of the cases in this sample involved extreme violence, including features such as sadism, mutilation, sexual components or multiple stabbings. Excessive violence was a feature of acts when the offender was not the sole perpetrator or when there was a previous homicidal history. Positive psychotic symptoms, including delusions, were not associated with the use of excessive violence.
These results highlight the importance of variables other than clinical state when examining qualitative aspects of homicidal acts, such as the degree and nature of violence, by offenders with schizophrenia. Further study is needed with a more specific focus on the qualities of the violence among different subgroups of offenders, but inclusive of those with psychosis.
目前尚不清楚精神分裂症杀人犯的精神病症状与暴力性质之间是如何关联的，或者更具体地说，不同的精神病症状与过度暴力之间是否存在不同的联系。
确定与精神分裂症杀人犯使用过度暴力相关的因素。
分析了125名连续诊断为精神分裂症的芬兰杀人犯的法医精神病检查陈述和犯罪索引文件数据。
该样本中近三分之一的案件涉及极端暴力，包括施虐、残害、性成分或多次刺伤等特征。当犯罪者不是唯一的行凶者或有先前的杀人历史时，过度暴力是行为的一个特征。包括妄想在内的阳性精神病症状与使用过度暴力无关。
这些结果凸显了在研究精神分裂症犯罪者杀人行为的定性方面（如暴力程度和性质）时，临床状态以外的变量的重要性。需要进一步开展更具体的研究，重点关注不同犯罪亚组（包括患有精神病的亚组）暴力行为的特征。
Zotero 插件