改变静止状态大脑振荡和相关的认知障碍在晚年抑郁症与不同的抑郁严重程度:一个EEG功率谱和功能连接性研究研究
Yijie Zeng1, Jingyi Lao1, Zhangying Wu1
1Geriatric Neuroscience Center, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Journal of affective disorders
|November 2, 2023
概括
休息状态的大脑振荡在晚年抑郁症 (LLD) 中发生变化,具体变化与认知障碍有关. 这些大脑活动模式可以作为LLD严重程度的标志物,并告知神经调节策略.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 老年学是指老年学的学科.
背景情况:
- 认知障碍在晚年抑郁症 (LLD) 中很常见.
- 了解LLD中静止状态大脑振荡变化对于识别生物标志物至关重要.
- 在LLD中,抑郁症严重程度与大脑振荡之间的关系需要进一步研究.
研究的目的:
- 在LLD.中调查改变的静止状态振荡 (功率频谱和功能连接).
- 为了检查这些振荡和认知障碍在不同严重程度的抑郁症之间的关联.
- 探索LLD的潜在生物标志物.
主要方法:
- 对65名LLD患者和40名对照人进行的横截面研究.
- 评估全球和特定领域的认知功能.
- 静止电脑图 (EEG) 用功率频谱和加权相滞后指数 (wPLI) 分析.
主要成果:
- 在中度至重度的LLD组中观察到注意力和执行功能障碍.
- 在两个LLD组中都发现了后部上马功率的增强.
- 在中度至重度的LLD群体中,增加的体和前-体/体西塔连接与注意力缺陷相关.
结论:
- 在LLD中异常的大脑活动模式与认知障碍有关.
- 改变后脑振荡可能是LLD的特征标志物.
- 在中度至重度的群体中,认知障碍和连接性变化表明类似状态的标记物,告知潜在的神经调节目标.
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