Core-Lexicon and Main-Concept Production During Picture-Sequence Description in Adults Without Brain Damage and Adults With Aphasia
Core-Lexicon and Main-Concept Production During Picture-Sequence Description in Adults Without Brain Damage and Adults With Aphasia
复制标题
DOI：
10.1044/2015_ajslp-14-0161
复制
发表时间：
2015-11-01
影响因子：
2.6
通讯作者：
Richardson, Jessica D.
中科院分区：
文献类型：
--
作者：
Dalton, Sarah Grace;Richardson, Jessica D.
目的：我们试图使用 AphasiaBank 数据库中的转录本来识别图片描述任务的核心词汇，并确定控制说话者和失语症患者 (PWA) 之间核心词汇使用的差异。我们还研究了核心词典和已建立的话语测量（主要概念分析）之间的关系。方法：通过识别 92 个控制说话者产生的引理来开发核心词典。使用核心词典和最近开发的主要概念列表对转录本进行评分（165 个对照转录本和 238 个 PWA 转录本）。中值测试检查了对照组、PWA 和失语症亚型之间的差异。 Spearman 相关性评估了核心词典和主要概念表现之间的关系。结果：确定了 24 项核心词典。在控制说话者和 PWA 之间以及失语症亚型之间，核心词汇和主要概念得分存在显着差异。所有组的核心词典和主要概念表现均呈显着正相关。结论：我们报告了核心词典的发展、说话者之间核心词典使用的差异以及核心词典和主要概念分数之间的关系。需要进行研究来确定这些话语测量的临床效用和心理测量特性及其对功能性沟通的多层次话语分析的潜在贡献。
Purpose: We sought to identify the core lexicon of a picture-description task using transcripts from the AphasiaBank database and to determine differences in core-lexicon usage between control speakers and persons with aphasia (PWAs). We also investigated the relationship between core lexicon and an established discourse measure, main-concept analysis.Method: A core lexicon was developed by identifying lemmas produced by 92 control speakers. Transcripts were scored-165 control transcripts and 238 PWA transcripts-using the core lexicon and a recently developed main-concept list. Median tests examined differences between controls, PWAs, and aphasia subtypes. Spearman's correlations assessed the relationship between core-lexicon and main-concept performance.Results: A 24-item core lexicon was identified. Significant differences were found between control speakers and PWAs, and between aphasia subtypes, for core-lexicon and main-concept scores. Core-lexicon and main-concept performance was significantly and positively correlated for all groups.Conclusions: We report the development of a core lexicon, differences in core-lexicon usage between speakers, and the relationship between core-lexicon and main-concept scores. Research is needed to determine the clinical utility and psychometric properties of these discourse measures and their potential contribution to multilevel discourse analysis of functional communication.