感知可信度调节海马活动在偶发的反事实思维
Kaylee Miceli1,2, Ricardo Morales-Torres2,3, Ari Khoudary4
1Department of Philosophy, Duke University, Durham, North Carolina, USA.
Hippocampus
|October 31, 2023
概括
想象过去的其他事件 (插曲性的反事实思维) 激发海马体. 在这种认知过程中,可信性积极调节海马活动,特别是在左前部区域.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 人类的记忆 人类的记忆
背景情况:
- 情节性反事实思维 (ECT) 涉及到想象过去的替代结果.
- ECT与情节性未来思维 (EFT) 共享神经机制,两者都依赖于海马.
- 之前的研究探讨了基于事件可信度的海马体参与EFT.
研究的目的:
- 研究是否感知可信度在ECT期间调节海马活动.
- 通过在ECT中的可信性来确定海马调节的特定位置和性质.
主要方法:
- 结合了两个功能磁共振成像 (fMRI) 数据集.
- 在ECT任务期间分析海马活动与感知可信度等级的关系.
主要成果:
- 在ECT期间感知可信性显著和参数调节的海马活动.
- 这种调制是专门局限于左前海马.
- 增加的左前海马活动与更高的ECT可信度等级正相关.
结论:
- 左前海马在构建可信的情节性反事实方面发挥着至关重要的作用.
- 研究结果表明,海马的作用超越了努力或困难,可能在场景构建中发挥作用.
- 这突显了海马参与灵活的认知,包括过去和未来的思维.
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