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在帕金森病中,与认知功能相关的皮质底贝塔振荡变化与帕金森病相关
Danika L Paulo1, Helen Qian1,2, Deeptha Subramanian1
1Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN 37212, USA.
Brain : a journal of neurology
|June 16, 2023
概括
帕金森病的认知障碍可能源于关键区域的大脑波活动的改变. 在工作记忆任务中降低β振荡与患者的认知缺陷相关.
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
- 运动障碍 运动障碍
背景情况:
- 认知障碍是帕金森病 (PD) 的常见非运动症状,显著影响生活质量.
- 与PD相关的认知障碍的潜在机制,特别是工作记忆的潜在机制,仍然不太清楚.
- 贝塔振荡对认知功能至关重要,它们的失调与PD有关.
研究的目的:
- 调查贝塔振荡在尾状和背侧前额皮层 (DLPFC) 在帕金森病认知障碍中的作用.
- 为了确定认知电路中的改变β振荡活动是否有助于PD患者的工作记忆缺陷.
主要方法:
- 从DLPFC记录了局部现场潜力,并在15名接受深度脑刺激手术的PD患者中记录了尾部潜力.
- 记录在休息状态和工作记忆任务期间进行,以分析β振荡功率.
- 研究了β活性,任务表现和手术前认知状态之间的关系.
主要成果:
- 在工作记忆编码过程中,DLPFC和caudate中的β振荡功率下降,并在反过程中增加.
- 患有认知障碍的PD患者在编码期间在DLPFC和caudate中的β功率呈现较小的下降.
- 探索性分析揭示了阿尔法和频率的类似模式.
结论:
- 在皮质-状-状-皮质 (CSTC) 电路中的改变的β振荡可能是帕金森病的认知障碍的基础.
- 这些发现突出了新型神经调节疗法的潜在目标,旨在改善PD的认知功能.
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