VA Salt Lake City Health Care System, UT.
The University of Utah, Salt Lake City.
Am J Speech Lang Pathol. 2018 Mar 1;27(1S):323-335. doi: 10.1044/2018_AJSLP-16-0193.
Combined Aphasia and Apraxia of Speech Treatment (CAAST) is a newly developed treatment shown to increase production of accurate content in narrative discourse for persons with aphasia and apraxia of speech. The purpose of this post hoc study was to further describe lexical and morphosyntactic changes associated with changes in content production.
Existing probe data from 8 persons with aphasia who had completed CAAST were used to complete analyses of morphosyntactic production, lexical diversity, and novelty of content. Language analyses were completed using discourse samples obtained at numerous pretreatment and posttreatment intervals.
All participants demonstrated gains in morphosyntactic language output for treated items, which extended to untreated sets for 7 participants. All 8 increased in production of novel content. Lexical diversity increases were evident for most participants. Although there were some similarities in language changes, there was substantial variability across response profiles.
CAAST, previously associated with positive treatment effects for production of accurate content, also appears to facilitate acquisition and generalization of morphosyntactic complexity, lexical diversity, and novelty of content for individuals with nonfluent aphasia. Further investigation is needed to determine causality and appropriate clinical application.
联合失语症和言语失用治疗（CAAST）是一种新开发的治疗方法，已被证明可增加言语失用症和失语症患者叙事话语中准确内容的产生。本事后分析的目的是进一步描述与内容生成变化相关的词汇和形态句法变化。
使用已完成 CAAST 的 8 名失语症患者的现有探针数据，完成形态句法产出、词汇多样性和内容新颖性的分析。使用在许多预处理和后处理间隔获得的话语样本完成语言分析。
所有参与者在治疗项目的形态句法语言输出方面都有提高，7 名参与者的未治疗项目也有提高。所有 8 名参与者的新颖内容生成都有所增加。大多数参与者的词汇多样性都有所增加。尽管语言变化存在一些相似之处，但反应特征存在很大差异。
CAAST 先前与准确内容产生的积极治疗效果相关，似乎也促进了非流畅性失语症个体对形态句法复杂性、词汇多样性和内容新颖性的习得和泛化。需要进一步调查以确定因果关系和适当的临床应用。
