ABSTRACT

Background

It is well-established that individuals with nonfluent aphasia produce proportionally more familiar or non-propositional language than neurotypical adults. Much less is known about the types of familiar language used or about the effects of either language context or impairment on usage patterns.

Aims

The purpose of this study was to identify and compare types of familiar language across several spontaneous speech contexts in individuals with and without aphasia in order to refine models of familiar language use for clinical application.

Methods & Procedures

Language transcripts from Aphasiabank of 154 individuals with moderate to severe post-stroke Broca’s aphasia and gender- and age-matched controls were coded to identify and classify nine types of familiar language. Language samples included a story-telling task and three conversational topics. Non-parametric comparisons and Spearman’s correlations were used to analyze usage patterns.

Outcomes & Results

Individuals with aphasia produced significantly higher proportions of formulaic expressions (context-bound, stereotyped utterances) as compared to controls, but proportions of lexical bundles (connotation-free, multi-word utterances) did not significantly differ. Familiar language usage varied by language contexts and level of severity for individuals with aphasia, whereas production patterns of healthy controls were remarkably stable.

Conclusions

This study offers insights into patterns of familiar language usage affected by linguistic ability and language context. A theoretical framework for conceptualising familiar language will result in improvements to existing interventions.

中文翻译：

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比较非流利性失语症患者和健康对照者在自发语境中的熟悉语言使用模式

摘要

背景

众所周知，非流利性失语症患者比神经典型的成年人产生更多熟悉或非命题的语言。对所使用的熟悉语言的类型或语言上下文或损害对使用模式的影响知之甚少。

目标

本研究的目的是在有和没有失语症的个体中识别和比较几种自发语境中的熟悉语言类型，以改进临床应用中熟悉的语言使用模型。

方法和程序

来自 Aphasiabank 的 154 名中度至重度卒中后 Broca 失语症患者以及性别和年龄匹配的对照者的语言记录被编码以识别和分类九种熟悉的语言。语言样本包括一个讲故事的任务和三个对话主题。非参数比较和 Spearman 相关性用于分析使用模式。

结果和结果

与对照组相比，失语症患者的公式化表达（上下文相关、刻板的话语）比例明显更高，但词汇束（无内涵、多词话语）的比例没有显着差异。失语症患者的熟悉语言使用因语言环境和严重程度而异，而健康对照组的生产模式非常稳定。

结论

这项研究提供了对受语言能力和语言环境影响的熟悉语言使用模式的见解。将熟悉的语言概念化的理论框架将导致对现有干预措施的改进。