MCI 患者口语表达中言语和手势功能的异质性

IF 1.2 3区 心理学 Q2 LINGUISTICS Journal of Neurolinguistics Pub Date : 2024-08-09 DOI:10.1016/j.jneuroling.2024.101227
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引用次数: 0

摘要

背景以前的研究发现,患有进行性轻度认知障碍(MCI)的女性说话者的语言行为具有同质性。这些说话者主要利用具有互动功能的言语和非言语语用标记来保持与对话者的交流,而且这种功能会随着时间的推移而显著增强。然而,说话者也有观察到的差异,这促使我们考虑神经语言学模型,对参与者的话语制作进行个性化分析。方法:我们使用纵向和自然语言语料库,对五位 75 岁以上、被诊断为进行性 MCI 的女性进行了多模态和个性化分析。使用转录工具(即口头话语)和注释工具(即手势)对数据进行处理,然后进行主成分分析,因为每个人的数据集和话语模式各不相同,需要对其进行分析。在有标准进展的失忆型 MCI、多域 MCI 和认知储备良好的高龄 MCI 特征中,出现了三种行为模式。这些发现鼓励人们进一步研究 MCI 的特征,将其视为一种动态的、因人而异的诊断实体。此外,语料库分析还能帮助临床医生评估 MCI 患者的话语,以达到诊断目的,并评估治疗效果,尤其是言语治疗效果。
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Heterogeneity of verbal and gestural functions in spoken discourse with MCI

Context

Previous research has identified a homogeneous language behavior among women speakers with a progressive mild cognitive impairment (MCI). These speakers primarily utilize verbal and non-verbal pragmatic markers with interactive functions to maintain communication with the interlocutor, and this function significantly increases in time. However, the speakers have observed variations, prompting the development of an individualized analysis of the participants' discursive productions considering neurolinguistic models.

Methods

A multimodal and individualized analysis was conducted on five women over 75, diagnosed with progressive MCI, using longitudinal and natural language corpora. The data were processed using transcription tools (i.e., verbal discourse) and annotation tools (i.e., gestures), then subjected to Principal Component Analyses due to the diverse data set and discursive modalities to analyze for each individual.

Results & conclusion

The results reveal variations, even specialization, in verbal and gestural pragmatic markers based on cognitive and empathic profiles, as well as certain resilience factors among study participants. Three behavioral patterns emerge among the profiles of amnestic MCI with standard progression, multidomain MCI profiles, and MCI profiles occurring at a very advanced age in the context of good cognitive reserve. These findings encourage further research to characterize MCI as a dynamic and variable diagnostic entity from one individual to another. Additionally, corpus analysis could enable clinicians to assess the discourse of individuals with MCI for diagnostic purposes and evaluate treatments' effectiveness, especially speech therapy.

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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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