Considering a multi-level approach to understanding maintenance of global coherence in adults with aphasia.
Considering a multi-level approach to understanding maintenance of global coherence in adults with aphasia.
复制标题
考虑采用多层次的方法来理解失语症成人的整体一致性的维持。
DOI：
10.1080/02687038.2012.676855
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发表时间：
2012
期刊：
影响因子：
2
通讯作者：
Capilouto,GilsonJ
中科院分区：
文献类型：
--
作者：
Wright,HeatherHarris;Capilouto,GilsonJ
话语是一种自然发生的动态交流形式。连贯是话语的一个方面，它反映了听者理解说话人所传达的整体意思的能力。成人失语症患者可能表现为整体连贯能力的维持受损，这反过来又可能导致他们在整体交际能力方面的困难。目的本研究的目的是确定微语言过程是否有助于维持失语症和非失语症成年人的整体连贯性。方法与程序研究对象为15例成人失语症（PWA）和15例健康对照（HC）。研究参与者讲述了用无字绘本讲述的故事。对话语样本进行转录，然后分析所产生的信息单位百分比、词汇多样性、句法复杂性和整体连贯性的维持情况。结果与结果采用多个线性回归模型考察微观语言和宏观语言测度之间的关系。对于对照组来说，传达的信息单位百分比是一个重要的预测指标，可以预测所讲故事的整体连贯性。对于失语症组来说，传达的信息单位百分比和词汇多样性是维持故事整体连贯性的重要预测因素。结论微语言过程有助于失语症成人故事的整体连贯性。这些发现对于使用多层次话语模型分析成人失语症患者的话语能力和测量个体对治疗的反应具有重要的临床意义。
BackgroundDiscourse is a naturally occurring, dynamic form of communication. Coherence is one aspect of discourse and is a reflection of the listener's ability to interpret the overall meaning conveyed by the speaker. Adults with aphasia may present with impaired maintenance of global coherence, which in turn may contribute to their difficulties in overall communicative competence.AimsThe aim of the study was to determine if microlinguistic processes contribute to maintenance of global coherence in adults with and without aphasia.Method & ProceduresParticipants included 15 adults with aphasia (PWA) and 15 healthy controls (HC). Study participants told stories conveyed in wordless picture books. The discourse samples were transcribed and then analysed for percent of information units produced, lexical diversity, syntactic complexity, and maintenance of global coherence.Outcomes & ResultsSeveral linear regression models were carried out to investigate the relationship among the microlinguistic and macrolinguistic measures. For the control group, percent of information units conveyed was a significant predictor of maintenance of global coherence for stories told. For the aphasia group, percent of information units conveyed and lexical diversity were significant predictors of maintenance of global coherence for stories told.ConclusionsResults indicated that microlinguistic processes contribute to the maintenance of global coherence in stories told by adults with aphasia. These findings have important clinical implications for using a multi-level discourse model for analysing discourse ability in adults with aphasia and measuring individual response to treatment.