减少连接强度导致在认知训练中提高工作记忆能力
Guiyang Lv1, Tianyong Xu2, Jinhang Li2
1School of Physics, Zhejiang University, Hangzhou, 310027, China; Institute of Big Data and Artificial Intelligence in Medicine, School of Electronics and Information Engineering, Taizhou University, Taizhou, 318000, China.
NeuroImage
|February 1, 2025
概括
认知训练,就像数轴头脑计算,提高工作记忆能力 (WMC). 这项研究表明,减少功能性大脑连接,而不仅仅是训练,是WMC改进的基础.
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
- 计算神经科学是一种神经科学.
背景情况:
- 众所周知,认知训练可以提高工作记忆能力 (WMC).
- 基于阿巴克斯的心理计算 (AMC) 训练增强了WMC,可能是通过改变功能连接.
- 连接认知训练与WMC的精确神经机制仍然不清楚.
研究的目的:
- 研究AMC培训后功能性大脑连接和WMC增强之间的关系.
- 通过静止状态的功能连接和储计算来模拟WMC.
- 确定连接强度在与认知训练相关的WMC变化中的作用.
主要方法:
- 从接受长期AMC培训的参与者和对照组获得的fMRI数据.
- 构建了全脑静止状态的功能连接网络.
- 模拟WMC使用基于连接数据的储计算.
- 分析了连接强度对WMC的影响.
主要成果:
- 在AMC组比对照组表现出更高的WMC,特别是在前面对面 (FPN),视觉 (VIS) 和感觉运动 (SMN) 网络中.
- 当不考虑连接强度时,AMC组中的WMC优势会减少.
- 对照组的连接强度减弱增强了他们的WMC,与AMC组的性能相匹配或超过.
- 对于FPN,VIS和SMN所观察到的优势在弱化的连接条件下也被复制.
结论:
- 功能连接强度的减少与接受认知训练的个体中增强的WMC相关.
- 这些发现表明,功能连接的改变,特别是力量的减少,在认知增强中起着至关重要的作用.
- 这项研究为从认知干预中改善工作记忆的基础的神经机制提供了新的见解.
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