休息状态的功能连接是由早期帕金森病的认知储备调节的
Sonia Di Tella1,2, Matteo De Marco3, Francesca Baglio2
1Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy.
Frontiers in psychology
|September 11, 2023
概括
认知储备 (CR) 在帕金森病 (PD) 中影响大脑连接. 患有PD的患者的低CR显示出前-上连接性降低,这表明补偿机制参与维持认知功能.
科学领域:
- 神经科学是一个神经科学.
- 认知神经学 认知神经学
- 神经成像是一种神经成像.
背景情况:
- 额头状断是帕金森病 (PD) 执行功能障碍的一个关键特征.
- 认知储备 (CR),代表认知适应能力,可以提供对PD的功能衰退的弹性.
- 了解CR在调节大脑网络连接中的作用对于PD研究至关重要.
研究的目的:
- 调查CR调节与PD执行功能障碍相关的通路中的功能连接性的假设.
- 探索CR代理 (教育,职业) 与PD患者和对照者的大脑网络连接之间的关系.
主要方法:
- 休息状态功能磁共振成像 (fMRI) 对26名PD患者和24名对照进行.
- 使用独立组件分析 (ICA) 和基于种子的方法来分析功能连接.
- 分析的关键网络包括默认模式 (DMN),前端对象 (FPN),突出 (SalN),感觉运动网络 (SMN) 和视觉网络 (OVN).
主要成果:
- 低CR的PD患者表现出前扣带前和基底的后部DMN连接性降低.
- 在低CRPD患者中观察到双边前额-双肩连接性减少,与背侧和腹侧前额种子有关.
- 与低CR对照组相比,在低CRPD患者中发现了中间前额区域内的超连接性.
结论:
- 在PD中,认知储备 (CR) 显著调节基底和前-双网络中的功能连接.
- 在低CR的PD患者中,注意力控制网络似乎下调,在中间额头区域有补偿性上调.
- 这种补偿机制可能有助于维持认知功能,尽管PD的后皮层逐渐下降.
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