唐氏综合症患者的词汇和表达形态句法:与叙述的联系

IF 2.9 2区 医学 Q1 EDUCATION, SPECIAL
Isabel Neitzel
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引用次数: 0

摘要

背景叙述能力对于日常和学校生活中的社会参与至关重要,但涉及不同的语言能力,如词汇和语法。这对于同时存在语言和认知障碍的人来说尤其困难。以往的研究发现,生产性词汇可能是影响唐氏综合症患者叙事能力的关键因素。考虑到语言习得中词汇和形态句法表现之间的密切联系,以及唐氏综合症患者在形态句法技能方面表现出的明显障碍,在语法缺陷的影响下,词汇和叙事技能之间关系的性质需要进一步研究。方法:使用非语言图画书从 28 名唐氏综合症儿童和青少年(10;0-20;1 岁)中获得叙事。叙事能力采用叙事评分标准(Narrative Scoring Scheme)从七个方面(包括宏观和微观结构)进行评分。还进行了词汇分析和形态词汇语境分析,包括动词和连词枚举、动词位置评估和多词组。成绩单分析的结果得到了评估表达词汇和形态句法发展的标准化语言测量数据的补充。结果词汇分析表明,作为词汇和形态句法能力之间的纽带,从属连词的产生具有高度的异质性。对标准化数据和叙事数据的比较表明,从句的产生因诱导环境的不同而存在差异。多元回归分析表明,叙事任务中不同动词的数量是预测唐氏综合症患者叙事能力的最重要因素。 讨论和启示本研究结果有助于了解影响语言障碍患者叙事能力的因素。有区别的动词词库被认为是唐氏综合症患者达到高级叙事技能的关键能力。这些发现对治疗和教育支持具有临床意义,并有助于理解唐氏综合症患者在参与交际时词汇优势与形态句法弱点之间的关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Vocabulary and expressive morpho-syntax in individuals with Down syndrome: Links to narration

Background

Narrative ability is crucial for social participation in everyday and school life but involves different language abilities such as vocabulary and morpho-syntax. This is particularly difficult for individuals who display both language and cognitive impairments. Previous research has identified productive vocabulary as a possible key factor for narrative performance in individuals with Down syndrome. Considering a close connection between lexical and morpho-syntactic performance within language acquisition and the distinct impairments that individuals with Down syndrome display concerning their morpho-syntactic skills, the nature of a relation between vocabulary and narrative skills under the influence of grammatical deficits requires further investigation.

Methods

Narrations were obtained from 28 children and adolescents with Down syndrome (aged 10;0–20;1) using a non-verbal picture book. Narrative abilities were rated using the Narrative Scoring Scheme across seven narrative aspects (including macro- and microstructure). Vocabulary analyses and morpho-lexical context analyses including verb and conjunction enumerations, evaluation of verb position and MLU were conducted. Findings from the transcript analysis have been supplemented with data from standardized language measures evaluating expressive lexical and morpho-syntactic development. A multiple regression analysis was conducted to identify significant predictors for narrative outcome in the participants with Down syndrome.

Results

Lexical analyses revealed a high heterogeneity in production of subordinating conjunctions as a link between lexical and morpho-syntactic abilities. Comparisons of standardized and narrative data demonstrated differences in subordinate clause production depending on the elicitation setting. A multiple regression analysis identified the number of different verbs in the narrative task as the most significant predictor for narrative performance in individuals with Down syndrome.

Discussion and implications

The findings of this study contribute to the knowledge regarding factors that influence narrative performance in individuals with language impairment. A differentiated verb lexicon can be identified as the key ability for reaching advanced narrative skills in participants with Down syndrome. These findings are of clinical relevance for therapeutic and educational support and contribute to an understanding of the relation between strengths in vocabulary and morpho-syntactic weaknesses in individuals with Down syndrome within communicative participation.

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来源期刊
CiteScore
5.50
自引率
6.50%
发文量
178
期刊介绍: Research In Developmental Disabilities is aimed at publishing original research of an interdisciplinary nature that has a direct bearing on the remediation of problems associated with developmental disabilities. Manuscripts will be solicited throughout the world. Articles will be primarily empirical studies, although an occasional position paper or review will be accepted. The aim of the journal will be to publish articles on all aspects of research with the developmentally disabled, with any methodologically sound approach being acceptable.
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