专门的晚期 cingulo-opercular 网络激活阐明了关于模两可的决定背后的机制
Jordan E Pierce1, Nathan M Petro2, Elizabeth Clancy3
1Center for Brain, Biology, and Behavior, University of Nebraska-Lincoln, Lincoln, NE, USA.
NeuroImage
|August 9, 2023
概括
带-带 (CO) 网络有助于决策,特别是在模两可的情况下. 对模两可的情绪表达的积极判断需要通过CO网络的介导进行艰苦的处理.
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
- 决策科学 决策科学 决策科学
背景情况:
- 皮层任务控制网络,特别是带膜-眼膜 (CO) 网络,对于决策至关重要.
- 重要的是,CO网络在处理模糊性和支持任务执行方面的作用非常重要,尤其是在错误后.
研究的目的:
- 调查CO网络在决策过程中对模糊性处理的贡献.
- 检查CO网络激活的时间动态,以应对模两可的情绪刺激.
主要方法:
- 两项研究使用了缓慢揭示价值偏差任务,在此过程中,情绪表达逐渐被揭露出来.
- 在主要研究中使用fMRI (n=32) 来记录CO网络区域的BOLD时间课程.
- 一个更大的在线样本 (n=81) 参与了一项后续研究,该研究采用了扩展任务设计.
主要成果:
- 对惊的面孔的积极判断与更慢的响应时间和CO网络晚期激活相关.
- 模两可的试验显示出一个明显的,晚发生的第二次CO网络反应.
- 这些发现支持了最初的消极性假设,表明积极的判断涉及费力,CO介导的控制.
结论:
- 在决策的后期阶段,特别是处理模两可时,CO网络起着至关重要的作用.
- 对模两可的刺激的积极判断与通过CO网络调解的努力认知控制有关.
- 这些发现提供了关于在不确定性下决策的基础的神经机制的见解.
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