生物标志物 生物标志物
Tanya Talkar1, Daniel J Schulman1, David J Libon2,3,4
1Linus Health, Boston, MA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
远程数字认知评估 (rDAC) 通过基于iPad的测试有效地识别认知障碍 (CI). 这种工具对早期检测诸如轻度认知障碍 (MCI) 和痴呆症等疾病充满希望.
科学领域:
- 神经科学和认知科学 神经科学和认知科学
- 数字健康和医疗技术数字化
- 老年学和衰老研究研究.
背景情况:
- 目前对轻度认知障碍 (MCI) 和阿尔茨海默病 (AD) 导致的痴呆症的诊断标准需要记录认知障碍 (CI).
- 传统的神经心理测试虽然严格,但存在很大的时间障碍,可能会推迟早期CI检测和获得治疗的机会.
- 本研究探讨了一种新的远程数字认知评估 (rDAC) 的实用性,用于识别CI.
研究的目的:
- 评估rDAC在区分认知不受损 (CU) 个体,MCI个体和痴呆症个体之间的有效性.
- 评估从rDAC自动提取的传统,过程和声学指标的诊断性能.
- 确定rDAC是否可以作为早期认知障碍检测的可行,可访问的工具.
主要方法:
- 通过iPad进行的rDAC包括口头学习测试,语义流性和数字跨度测试.
- 根据综合评估,参与者被分类为认知无障碍 (CU,n=24),MCI (n=42) 或痴呆症 (n=15).
- 随机森林模型经过训练,将参与者分为不同的认知状态组 (例如,CU与MCI,CU与痴呆症).
主要成果:
- 在区分CU和MCI (AUC=0.95,精度=0.87) 方面取得了高精度.
- 在检测任何CI (CU与MCI+痴呆症) 中观察到出色的性能,AUC=0.98和精度=0.91.
- 关键的区分特征包括语音发音速率,暂停时间和声学语音特性 (动,持续时间).
结论:
- 简要的,基于iPad的rDAC展示了作为标志着早期认知障碍的敏感工具的巨大潜力.
- rDAC的性能与传统的,耗时的神经心理测试方法相美.
- 在rDAC中整合结果,流程和声学指标有效地捕捉了暗示CI的微妙性能差异.
相关概念视频
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