不同类型失语症的语言特征:利用T-LAB进行计算机辅助定性分析

IF 1.2 3区 心理学 Q2 LINGUISTICS
Molgora Sara , Corbetta Daniela , Di Tella Sonia , Raynaud Savina , Silveri Maria Caterina
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引用次数: 0

摘要

背景:在伴有血管和神经退行性病理的患者中均可观察到失语障碍。尽管在各种形式的失语症中自发言语有一些特征是在纯粹的语言水平上可识别的,但失语症的诊断主要依赖于临床和神经影像学数据的支持。目的利用T-LAB计算机辅助定性分析,探讨自发性言语中不同类型流利性失语症(即由左耳后区病变引起的言语产生障碍,与发音缺陷或言语失用无关)的一些核心特征。这是一个混合方法的软件,允许通过使用语言,统计和图形工具突出其关键特征来探索叙事。方法收集34例意大利语流利失语者(11例卒中后失语患者,17例原发性进行性失语患者,6例语意性失语患者)在描述波士顿失语诊断检查中的饼干盗窃图片时的自发言语(叙述)样本。34名健康的对照组被要求完成同样的任务。对整个语料库(所有叙述)的分析、具体元数据的介绍和标记由两名评价者完成,任何冲突由第三名评价者解决。结果st - lab分析显示,失语症患者与健康对照组、血管性失语症患者与退行性失语症患者之间存在统计学差异。虽然中风后失语症和神经退行性失语症之间存在着主要的区别,但在语义变异和语义变异的个体之间也存在着重要的差异。这些发现强调了计算机辅助语言生成分析的潜在用途,可以独立于任何临床支持来识别不同失语障碍的核心语言特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Linguistic characteristics of different types of aphasia: A computer-assisted qualitative analysis using T-LAB

Background

Aphasic disorders are observed in patients with both vascular and neurodegenerative pathology. Although spontaneous speech in the various forms of aphasia has some features that are identifiable on a purely linguistic level, diagnosing the type of aphasia critically relies on the support of clinical and neuroimaging data.

Objective

To identify some core characteristics of different types of fluent aphasias (i.e., disorders of speech production due to lesions in the posterior regions of the left perisylvian areas not associated with articulatory deficits or apraxia of speech) in spontaneous speech using T-LAB computer-assisted qualitative analyses. This is a mixed-method software that allows exploring narratives by highlighting their key features using linguistic, statistical and graphical tools.

Methods

We collected samples of spontaneous speech (narratives) from 34 fluent aphasic Italian speakers (i.e.,11 post-stroke aphasic patients, 17 with the logopenic variant of Primary Progressive Aphasia and 6 with the semantic variant) during the description of the Cookie Theft Picture of the Boston Diagnostic Aphasia Examination. Thirty-four healthy control subjects were asked to complete the same task. Analyses of the entire corpus (all of the narratives), specific metadata introduction and tagging were performed by two raters and any conflicts were resolved by a third rater.

Results

T-LAB analysis revealed statistically significant differences between both aphasic patients and healthy controls and between vascular and degenerative patients. Although the main distinction emerged between post-stroke and neurodegenerative aphasias, important differences also emerged between the individuals with the logopenic variant and the semantic variant.

Discussion

These findings underline the potential usefulness of a computer-assisted analysis of speech production to identify the core linguistic characteristics of different aphasic disorders, independently of any clinical support.

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来源期刊
Journal of Neurolinguistics
Journal of Neurolinguistics 医学-神经科学
CiteScore
3.90
自引率
5.00%
发文量
49
审稿时长
17.2 weeks
期刊介绍: The Journal of Neurolinguistics is an international forum for the integration of the neurosciences and language sciences. JNL provides for rapid publication of novel, peer-reviewed research into the interaction between language, communication and brain processes. The focus is on rigorous studies of an empirical or theoretical nature and which make an original contribution to our knowledge about the involvement of the nervous system in communication and its breakdowns. Contributions from neurology, communication disorders, linguistics, neuropsychology and cognitive science in general are welcome. Published articles will typically address issues relating some aspect of language or speech function to its neurological substrates with clear theoretical import. Interdisciplinary work on any aspect of the biological foundations of language and its disorders resulting from brain damage is encouraged. Studies of normal subjects, with clear reference to brain functions, are appropriate. Group-studies on well defined samples and case studies with well documented lesion or nervous system dysfunction are acceptable. The journal is open to empirical reports and review articles. Special issues on aspects of the relation between language and the structure and function of the nervous system are also welcome.
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