早期阿尔茨海默氏症影响快速但不减缓运动学习中的适应过程
Katrin Sutter1, Leonie Oostwoud Wijdenes1, Robert J van Beers1,2
1Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen 6525 GD, The Netherlands.
eNeuro
|May 31, 2024
概括
阿尔茨海默病 (AD) 损害了运动适应的快速,声明性组成部分,但不影响了缓慢,非声明性过程. 这支持痴呆症患者的无错学习策略.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 发动机控制器的控制器
背景情况:
- 阿尔茨海默病 (AD) 主要影响声明性记忆,省略非声明性记忆.
- 运动适应越来越多地被理解为涉及快速 (声明性) 和缓慢 (非声明性) 的过程.
研究的目的:
- 为了调查运动适应的快速,声明性组成部分是否在早期阿尔茨海默病中受损.
- 为了确定缓慢的,非声明的组件是否在阿兹海默症患者中保持完整.
主要方法:
- 使用 Reach 适应范式,对20名早期阿尔茨海默病患者和21名对照人群进行了研究.
- 适应性使用误差进行测量,并使用层次化的贝叶斯两态模型进行分析.
- 分析的关键参数包括快速和慢速流程的学习和保留率.
主要成果:
- 与对照组相比,阿尔茨海默病患者在快速适应过程中保持率明显较低.
- 在AD患者中,缓慢的适应过程基本上不受影响.
- 两组都表现出自发的恢复,表明一些适应机制的完整性.
结论:
- 声明性记忆系统参与快速运动适应过程在阿尔茨海默病中明显受到干扰.
- 缓慢的,非声明性适应过程对早期的AD有弹性.
- 这些发现为在痴呆症护理中使用无错学习提供了神经计算支持.
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