Landre N A, Taylor M A
Department of Psychiatry and Behavioral Sciences, Herman M. Finch University of Health Sciences, Chicago Medical School, Illinois 60064, USA.
J Nerv Ment Dis. 1995 Nov;183(11):673-80. doi: 10.1097/00005053-199511000-00001.
Formal thought disorder (i.e., abnormal utterances and communication problems) is a prominent feature of schizophrenia. To investigate the hypothesis that formal thought disorder in schizophrenics represents a disturbance of language functioning, we compared 21 thought-disordered and 16 non-thought-disordered schizophrenics on the Porch Index of Communicative Ability. The thought-disordered schizophrenics were significantly more impaired. We also examined nonlinguistic factors potentially impacting language performance in schizophrenics (e.g., disturbed attention, intellect, and/or thought content). Reduced attention was the best predictor of language performance in the thought-disordered group, whereas low intellect and reduced attention were predictive of language dysfunction in the non-thought-disordered group. Disturbed thought content was not predictive of language impairment in either group. These findings provide partial support for the idea that formal thought disorder in schizophrenics represents defective language functioning.
形式思维障碍（即言语异常和交流问题）是精神分裂症的一个突出特征。为了研究精神分裂症患者的形式思维障碍代表语言功能紊乱这一假设，我们使用交际能力波奇指数对21名存在思维障碍的精神分裂症患者和16名不存在思维障碍的精神分裂症患者进行了比较。存在思维障碍的精神分裂症患者受损更为显著。我们还研究了可能影响精神分裂症患者语言表现的非语言因素（例如注意力障碍、智力和/或思维内容）。注意力下降是存在思维障碍组语言表现的最佳预测指标，而智力低下和注意力下降则可预测不存在思维障碍组的语言功能障碍。思维内容紊乱在两组中均不能预测语言损伤。这些发现为精神分裂症患者的形式思维障碍代表语言功能缺陷这一观点提供了部分支持。
