高血压影响振荡动力学服务于口头工作记忆的编码阶段
Yasra Arif1, Abraham D Killanin1,2, Jingqi Zhu3
1Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE (Y.A., A.D.K., M.P.W., H.J.O., H.J.J., T.W.W.).
Hypertension (Dallas, Tex. : 1979)
|May 1, 2024
概括
高血压会影响记忆编码过程中的大脑活动,在头顶皮层表现出较弱的神经反应. 控制高血压可能涉及补偿性大脑活动,与不受控制的高血压不同.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 心血管健康 心血管健康
背景情况:
- 慢性高血压是认知衰退的一个重要因素,特别影响执行功能和工作记忆.
- 与高血压相关的认知功能障碍背后的神经机制在很大程度上仍未被探索.
研究的目的:
- 研究控制高血压,不受控制的高血压和健康对照者的工作记忆的神经过程.
- 在这些组中识别记忆编码和维护期间神经振荡的差异.
主要方法:
- 在口头工作记忆任务中使用磁脑电图 (MEG) 进行的横截面研究.
- 三组参与者之间编码和维护阶段的神经振荡活动 (α-β) 的比较.
主要成果:
- 与对照组相比,高血压组在记忆编码过程中,左侧体区域的α-β振荡反应减少.
- 在编码过程中,在受控和不受控制的高血压组之间观察到右前额头振荡活动的差异.
- 这些神经编码反应与行为工作记忆性能有显著的相关性.
结论:
- 高血压与工作记忆编码过程中的神经生理异常有关,而维护似乎不受影响.
- 右半球活动可能代表控制高血压的补偿机制,可能保持认知功能.
- 失控的高血压可能涉及神经资源减少,限制补偿处理.
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