主观认知衰退中的感知学习和虚拟导航的神经相关:试点研究
Amir Amedi1, Shahar Shelly2,3, Nira Saporta4
1The Baruch Ivcher Institute for Brain, Cognition, and Technology, Baruch Ivcher School of Psychology, Reichman University, Herzliya, Israel.
iScience
|December 13, 2024
概括
这项研究表明,一种新的数字导航训练可以改善认知能力下降的老年人的空间记忆和大脑连接. 这种训练增强了参与记忆和导航的脑网络.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 神经成像是一种神经成像.
背景情况:
- 空间导航缺陷在与年龄相关的认知衰退中很常见,影响记忆和认知.
- 多感官训练可以通过吸引视觉皮层,甚至在非视觉环境中促进神经可塑性.
- 主观认知衰退 (SCD) 影响着老年人口的很大一部分,突出了对干预的需要.
研究的目的:
- 引入和评估一个新的数字导航培训协议,用于主观认知衰退的个体.
- 调查以多感官刺激为一体的自我中心和非中心导航策略对空间认知的影响.
- 在训练后检查神经可塑性变化,包括大脑连接和功能通路的招募.
主要方法:
- 一项概念验证研究涉及17名参与者 (平均年龄57.2岁) 的主观认知能力下降.
- 实施一个数字导航培训协议,结合自我中心和偏心策略,多感官刺激和视觉掩饰.
- 神经成像技术 (可能是fMRI或DTI,暗示连接分析) 来评估训练前后的大脑连接和途径招募.
主要成果:
- 在训练后的参与者中观察到空间记忆表现的改善.
- 训练与视觉区域6 - thalamic通路的招募相关.
- 在内存,执行前置区域和默认模式网络 (DMN) 区域之间发现了增强的功能连接.
- 通过后体复合体 (RSC) 调解的异心和自我中心导航区域之间注意到了增加的连接性.
结论:
- 数字导航培训协议显示了诱导感知学习和神经可塑性的潜力.
- 该培训增强了关键大脑网络中的功能连接,包括内存,执行功能和默认模式网络.
- 这种方法可以通过加强与老化中的空间认知和记忆相关的关键大脑网络功能来提供广泛的认知益处.
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