通过跨振声刺激改善老年人的神经心理和认知功能:双盲随机比较试验
Jang-Han Bae1,2, Jae-Young Ha3, Jai Jun Choung3
1Digital Health Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea.
Frontiers in aging neuroscience
|August 27, 2025
概括
在老年人中,通过头振动声学刺激 (tVAS) 改善了认知功能,减少了抑郁症. 40赫兹频率显示大脑活动和神经可塑性增强,
科学领域:
- 神经科学
- 老年学
- 认知心理学
背景情况:
- 认知障碍是全球重大公共卫生挑战.
- 对于减轻老年人群认知衰退而言, 非侵入性认知增强方法至关重要.
- 超振声刺激 (tVAS) 是一种新兴的非侵入性脑刺激技术.
研究的目的:
- 研究tVAS对老年人的神经心理和认知功能的影响.
- 为了比较两种tVAS频率 (20 Hz和40 Hz) 对认知表现和情绪的有效性.
- 使用脑电图 (EEG) 和事件相关潜能 (ERP) 探索tVAS的潜在神经机制.
主要方法:
- 一个双盲,随机的,涉及老年人的比较试验.
- 每天30分钟的tVAS会议在20Hz或40Hz为8周.
- 综合评估包括神经心理测试 (CERAD-K,CES-D),唾液皮质醇,EEG和ERP.
主要成果:
- 在20 Hz和40 HztVAS组中观察到整体认知功能的显著改善 (CERAD- K得分).
- 40 Hz tVAS 组显示抑郁症状显著减少 (CES- D 分数).
- 个别的EEG和ERP分析表明,40HztVAS在所有频段中增加了功率,并增强了N100和P200ERP振幅,这表明神经可塑性和感官处理效率增加.
结论:
- 在老年人中,tVAS,特别是40 Hz,显示出增强认知功能和改善情绪的潜力.
- 40赫兹频率似乎促进了神经可塑性和马引力, 可能改善大脑网络同步.
- 需要进一步的大规模研究来证实tVAS在认知增强方面的临床适用性和长期效果.
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