Leroy Fabrice, Pezard Laurent, Nandrino Jean-Louis, Beaune Daniel
UFR de Psychologie, Université Charles de Gaulle (Lille 3), Domaine Universitaire du Pont de Bois, F59653 Villeneuve d'Ascq., France.
Psychiatry Res. 2005 Feb 28;133(2-3):159-71. doi: 10.1016/j.psychres.2004.07.009.
Schizophrenic speech has been studied both at the clinical and linguistic level. Nevertheless, the statistical methods used in these studies do not specifically take into account the dynamical aspects of language. In the present study, we quantify the dynamical properties of linguistic production in schizophrenic and control subjects. Subjects' recall of a short story was encoded according to the succession of macro- and micro-propositions, and symbolic dynamical methods were used to analyze these data. Our results show the presence of a significant temporal organization in subjects' speech. Taking this structure into account, we show that schizophrenics connect micro-propositions significantly more often than controls. This impairment in accessing language at the highest level supports the hypothesis of a deficit in maintaining a discourse plan in schizophrenia.
人们已从临床和语言层面研究了精神分裂症患者的言语。然而，这些研究中使用的统计方法并未特别考虑语言的动态方面。在本研究中，我们对精神分裂症患者和对照受试者语言生成的动态特性进行了量化。根据宏观和微观命题的连续性对受试者对一篇短篇小说的回忆进行编码，并使用符号动力学方法分析这些数据。我们的结果表明受试者的言语中存在显著的时间组织。考虑到这种结构，我们发现精神分裂症患者比对照受试者更频繁地连接微观命题。在最高层面获取语言方面的这种损伤支持了精神分裂症患者在维持话语计划方面存在缺陷的假设。
