时间对失语症词汇和句法加工的影响

IF 1.2 3区 心理学 Q2 LINGUISTICS
Carolyn Baker , Tracy Love
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引用次数: 1

摘要

词汇水平上的加工缺陷,如词汇激活的延迟和减少,被认为是句法操作中断的根源,从而导致失语症患者的句子理解缺陷。在本研究中,我们利用眼动追踪技术研究了IWA中客体相关句的词汇加工和句法加工之间的关系。我们探讨了当一个关键词汇项(直接宾语名词)在句子中首次出现时,对其加工时间的操纵是否会对词汇获取产生直接影响,并对句法加工产生下游影响。为了实现这一目标,我们使用了新的时间操作来为词法处理提供额外的时间。除了探索IWA中的这些时间效应外,我们还试图了解额外时间对神经正常年龄匹配成人(AMC)句子加工的影响。我们预测,为增加关键词汇项目的加工时间而设计的时间操作将会1)增强对目标名词的词汇加工,2)促进句法整合,3)提高IWA和AMC的句子理解能力。我们证明,通过增加时间来加强词汇加工可以影响词汇加工,促进目标名词的句法检索,并导致未受损和受损系统的干扰分辨率增强。在失语症中,额外的时间可以减轻传播激活的损伤,从而改善词汇获取和减少下游依赖连接的干扰。然而,失语症患者可能需要更长的时间才能完全意识到这些好处。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The effect of time on lexical and syntactic processing in aphasia

The effect of time on lexical and syntactic processing in aphasia

The effect of time on lexical and syntactic processing in aphasia

The effect of time on lexical and syntactic processing in aphasia

Processing deficits at the lexical level, such as delayed and reduced lexical activation, have been theorized as the source of breakdowns in syntactic operations and thus contribute to sentence comprehension deficits in individuals with aphasia (IWA). In the current study, we investigate the relationship between lexical and syntactic processing in object-relative sentences using eye-tracking while listening in IWA. We explore whether manipulating the time available to process a critical lexical item (the direct-object noun) when it is initially heard in a sentence has an immediate effect on lexical access as well as a downstream effect on syntactic processing. To achieve this aim, we use novel temporal manipulations to provide additional time for lexical processing to occur. In addition to exploring these temporal effects in IWA, we also seek to understand the effect that additional time has on sentence processing in neurotypical age-matched adults (AMC). We predict that the temporal manipulations designed to provide increased processing time for critical lexical items will 1) enhance lexical processing of the target noun, 2) facilitate syntactic integration, and 3) improve sentence comprehension for both IWA and AMC. We demonstrate that strengthening lexical processing via the addition of time can affect lexical processing and facilitate syntactic retrieval of the target noun and lead to enhanced interference resolution in both unimpaired and impaired systems. In aphasia, additional time can mitigate impairments in spreading activation thereby improving lexical access and reducing interference during downstream dependency linking. However, individuals with aphasia may require longer additions of time to fully realize these benefits.

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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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