临床表现 临床表现
Layaly Shihadeh1, Stephen A Coombes2,3, Emily Ahne1
1Florida Atlantic University, Davie, FL, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
在口头流利任务中的入侵百分比与认知衰退和大脑变化有关. 更高的入侵与痴呆症和额叶体积减少有关,这表明与衰老相关的认知障碍的潜在标志物.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 老年学是一门学科.
背景情况:
- 语言记忆入侵是已知的老化认知衰退的指标.
- 在口头流利 (VF) 任务中侵入的意义不太清楚.
研究的目的:
- 调查声学 (PF) 和类别 (CF) VF任务中的入侵百分比是否在认知诊断中不同.
- 在三年内纵向研究这些差异.
- 为了确定VF入侵与前额,部和海马区大脑体积之间的关联.
主要方法:
- 来自佛罗里达州阿尔茨海默氏病研究中心 (ADRC) 的参与者的分析,具有不同的认知状态 (认知正常,MCI,痴呆症).
- 来自PF和CF任务的入侵百分比是在三年内收集的.
- 在基线时使用MRI扫描来评估大脑体积.
主要成果:
- 在第2年和第3年,诊断组的入侵百分比显著不同,这表明与认知状态有关.
- 与认知正常个体相比,痴呆症患者的侵入率较高.
- 较高的基线VF入侵百分比与前脑和脑区域的体积减少相关,特别是左前极和左尾中前脑区域.
结论:
- 在口语流性任务中的入侵百分比可以作为衰老认知衰退的敏感指标.
- 这些侵入百分比与左额叶的结构变化有关.
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