Watson C G, Wold J
J Clin Psychol. 1981 Jul;37(3):466-71. doi: 10.1002/1097-4679(198107)37:3<466::aid-jclp2270370303>3.0.co;2-i.
Von Domarus and Arieti have theorized that failure to reason by conventional logical rules is at the root of schizophrenic thought disorder, but the available research on this view is inconclusive. We compared the performance of schizophrenics (N = 100), brain-damaged patients (N = 50) and psychiatric controls (N = 50) on closely matched measures of Overexpansive and "Von Domarus" (similarity implies identity) syllogistic reasoning errors. Before the samples were matched for education and intelligence, the brain-damaged and schizophrenic patients made more Overexpansive errors than the controls, but the Von Domarus error difference was not significant. After matching, both differences were nonsignificant. The results indicate that inability to use syllogistic reasoning properly is probably not the root cause of schizophrenic thought disorder.
冯·多马鲁斯和阿里蒂提出理论，认为无法依据传统逻辑规则进行推理是精神分裂症思维障碍的根源，但关于这一观点的现有研究尚无定论。我们比较了精神分裂症患者（N = 100）、脑损伤患者（N = 50）和精神科对照者（N = 50）在过度扩张性和“冯·多马鲁斯”（相似性意味着同一性）三段论推理错误的紧密匹配测量上的表现。在样本按教育程度和智力进行匹配之前，脑损伤患者和精神分裂症患者比对照者出现更多过度扩张性错误，但冯·多马鲁斯错误差异不显著。匹配之后，两种差异均不显著。结果表明，无法正确运用三段论推理可能不是精神分裂症思维障碍的根本原因。
