临床表现 临床表现
1Chungnam National University Hospital, Daejeon, Korea, Republic of (South).
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
老年人难以找到单词可能源于阿尔茨海默病 (AD) 或初级渐进性失言症 (PPA). 特定的语言测试,如COWAT和命令,可能有助于区分这些条件.
科学领域:
- 神经语言学是一种神经语言学.
- 认知神经学 认知神经学
- 老年医学 老年医学
背景情况:
- 难以找到单词是衰老的常见症状,可能表明正常衰老,阿尔茨海默病 (AD) 或初级渐进性失言症 (PPA).
- 这些情况,虽然有共同的初始症状,但有不同的预后,需要准确的差异诊断.
- 了解语言差异对于早期和准确的识别至关重要.
研究的目的:
- 调查那些难以找到单词的个体的特定语言特征.
- 为了比较语言概况,并确定诊断为阿尔茨海默病的患者,非流利变异PPA (nfvPPA) 和其他PPA亚型之间的差异.
- 探索潜在的语言标记,以区分这些神经退行性疾病.
主要方法:
- 招募了18名自我报告的难以找到单词的患者.
- 评估语言使用来自韩国版本的西方-失言症电池 (K-WAB) 的失言率 (AQ).
- 评估认知功能 (MMSE,CDR,首尔神经心理查测试) 和特定的语言任务 (BNT,理解,重复,流利). 参与者被分为AD,nfvPPA和其他PPA组.
主要成果:
- 阿尔茨海默病 (AD) 患者的AQ分数较高,但控制口语词汇协会任务 (COWAT) 和波士顿命名测试 (BNT) 的缺陷.
- 非流利变异PPA (nfvPPA) 患者的AQ得分和理解困难 (是/否问题,命令) 最低.
- 在所有难以找到单词的群体中观察到COWAT的损伤,包括轻度认知障碍. 与AD相比,nfvPPA和PPA组表现出更大的前额/执行功能障碍和神经缺陷.
结论:
- 控制口语词汇组合任务 (COWAT),命令和是/否问题显示出难以找到词汇的患者之间的差异化潜力.
- 这些发现表明,这些语言测试可能为差异诊断提供初步标记.
- 需要对更大群体进行进一步的研究,以验证这些语言因素作为可靠的诊断工具.
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