小脑监测错误,并培养执行网络
P Andre1, N Cantore2, L Lucibello1
1Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Brain research
|December 21, 2023
概括
在中部前额皮质 (mPFC) 中的前额中线西塔 (Fmθ) 活动标志着结果冲突. 小脑对于在视觉运动任务中告知mPFC这些预测错误至关重要.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 发动机控制器的控制器
背景情况:
- 来自中间前额皮层 (mPFC) 的前额中线西塔 (Fmθ) 活动与预期和实际结果之间的冲突有关.
- 据假设,小脑前模型在检测和向mPFC发出这些结果不匹配的信号方面发挥作用.
研究的目的:
- 为了研究小脑在通知mPFC的作用,在视觉运动跟踪任务期间的结果冲突.
- 为了确定小脑功能是否对于产生Fmθ活动来响应性能错误是必要的.
主要方法:
- 在健康的对照组和小脑损伤的参与者中,视觉运动 (VM) 追踪任务期间的表现精度与相关的mPFC激活 (通过Fmθ测量).
- 参与者还执行纯视觉 (V),运动 (M) 和联合视觉-运动 (V+M) 任务.
- 使用独立组件分析 (ICA) 来分离Fmθ活动,双极定位在背前环状皮层.
主要成果:
- 在控制中,当错误水平超过值时,Fmθ功率在VM任务中增加,随着跟踪错误扩展,但不是在V,M或V+M任务中.
- 这种Fmθ的增加在小脑损伤的参与者中是不存在的,即使在VM任务中存在很高的错误水平.
- Fmθ活动与连续监控和在线错误检测有关,这表明当自动流程发生故障时,可以切换到执行控制.
结论:
- 小脑对于为mPFC提供预测错误信息至关重要,特别是当自动视觉运动控制失败时.
- 这种小脑的贡献似乎是必要的,以触发通过mPFC激活 (Fmθ) 反映的故意错误纠正机制.
- 需要进一步的研究来探索这种小脑警报功能在其他认知和非认知领域.
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