原发性进行性失语症患者叙述中形容词的产生

IF 1.2 3区 心理学 Q2 LINGUISTICS
Matthew Walenski , Thomas Sostarics , M. Marsel Mesulam , Cynthia K. Thompson
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引用次数: 0

摘要

形容词(如hungry)是语言的重要组成部分,但在语言障碍人群中却鲜有研究。在英语中,形容词有两种不同的用法:定语,修饰名词(饥饿的狗);或者谓语,在动词后面(狗饿了)。定语形容词比谓语形容词具有更复杂的语法结构,因此在有语法障碍的个体中可能特别容易被破坏。我们研究了原发性进行性失语症的三种亚型(PPA:语法型、语义型、语素缺失型)以及语法性脑卒中失语症和一组健康对照者的形容词生成。参与者根据绘本写出故事,我们根据他们写出的每个形容词的句法结构对其进行编码。与健康对照组相比,两个语法组,而不是其他两个患者组,每个句子产生的定语形容词明显减少。所有四组患者的谓语形容词生成率与对照组相似。此外,我们还发现,语法PPA参与者的定语形容词生成率与复杂句法结构句子(如It was the boy that追赶the girl)的生成能力受损之间存在显著相关;谓语形容词没有发现这种相关性。在不考虑结构的情况下,我们研究了产生的形容词的词汇特征,包括长度、频率、语义多样性和邻域密度。总的来说,所产生的形容词的词汇特征与各组的语言特征基本一致。综上所述,研究结果表明,定语形容词对语法语言产生的个体提出了一个特殊的挑战,并为语法现象的描述增加了一个新的维度。我们的研究结果进一步表明,定语形容词可能是改善语法语言治疗和恢复的一个富有成效的目标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The production of adjectives in narratives by individuals with primary progressive aphasia

Adjectives (e.g., hungry) are an important part of language, but have been little studied in individuals with impaired language. Adjectives are used in two different ways in English: attributively, to modify a noun (the hungry dog); or predicatively, after a verb (the dog is hungry). Attributive adjectives have a more complex grammatical structure than predicative adjectives, and may therefore be particularly prone to disruption in individuals with grammatical impairments. We investigated adjective production in three subtypes of primary progressive aphasia (PPA: agrammatic, semantic, logopenic), as well as in agrammatic stroke aphasia and a group of healthy control participants. Participants produced narratives based on picture books, and we coded every adjective they produced for its syntactic structure. Compared to healthy controls, the two agrammatic groups, but not the other two patient groups, produced significantly fewer attributive adjectives per sentence. All four patient groups were similar to controls for their rate of predicative adjective production. In addition, we found a significant correlation in the agrammatic PPA participants between their rate of producing attributive adjectives and impaired production of sentences with complex syntactic structure (subject cleft sentences like It was the boy that chased the girl); no such correlation was found for predicative adjectives. Irrespective of structure, we examined the lexical characteristics of the adjectives that were produced, including length, frequency, semantic diversity and neighborhood density. Overall, the lexical characteristics of the produced adjectives were largely consistent with the language profile of each group. In sum, the results suggest that attributive adjectives present a particular challenge for individuals with agrammatic language production, and add a new dimension to the description of agrammatism. Our results further suggest that attributive adjectives may be a fruitful target for improved treatment and recovery of agrammatic language.

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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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