患有认知障碍的患者的手指运动技能和相关的大脑区域
Shota Suzumura1,2, Junpei Sugioka2, Keita Sakurai3
1Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake, Japan.
Journal of Alzheimer's disease : JAD
|May 21, 2025
概括
患有阿尔茨海默病 (AD) 和轻度认知障碍 (MCI) 的人的手指敲击表现与大脑运动和感官区域的灰质体积相关. 这些发现表明,手指运动技能可能表明早期痴呆症中的结构性大脑变化.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 医疗成像医学成像
背景情况:
- 运动障碍可以先于认知衰退,并作为痴呆症的早期生物标志物.
- 以前的研究表明,手指敲击与认知功能之间存在关联,但具体涉及的大脑区域仍然不清楚.
研究的目的:
- 确定与阿尔茨海默病 (AD) 和轻度认知障碍 (MCI) 患者的手指运动灵敏度相关的大脑区域.
- 通过神经成像来探索手指运动和大脑结构变化之间的联系.
主要方法:
- 这是一项探索性,横截面研究,涉及136名个人 (71名AD,65名MCI).
- 测量了手指运动,并使用3D磁共振成像 (MRI) 进行基于voxel的形态测量来评估灰质体积.
- 分析了MRI数据和手指运动参数之间的相关性,控制了年龄,性别和认知分数等共变量.
主要成果:
- 指的点击速度和结事件与原发动机 (BA4) 和体感皮层 (BA3,1,2) 中的灰质体积有显著的相关性.
- 在左半球观察到许多显著的相关性,无论是左手还是右手的任务.
- 这些关联表明,精细运动技能与特定的大脑结构之间存在联系.
结论:
- 认知障碍患者的手指运动敏捷性与不同大脑区域的灰质体积有关.
- 这些发现突出了左半球明显的相关性,表明它的关键作用.
- 手指运动技能可能是痴呆症中潜在的结构性大脑变化的潜在指标.
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