重复观看叙事电影会改变大脑中的事件时间表
Narjes Al-Zahli1, Mariam Aly1, Christopher Baldassano2
1Department of Psychology, University of California, Berkeley; Berkeley, CA, USA.
bioRxiv : the preprint server for biology
|September 15, 2025
概括
大脑事件表示与重复经验相适应. 一些大脑区域灵活地调整事件细节,变得更细或更粗,影响记忆回忆.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
背景情况:
- 重复的经历是常见的,但大脑如何修改事件表示仍然不清楚.
- 大脑可能通过使它们更详细或更泛化来适应事件表示.
研究的目的:
- 为了研究大脑事件表现如何在重复观看叙事电影时发生变化.
- 测试事件表示是否在重复中变得更细或更粗.
主要方法:
- 功能性磁共振成像 (fMRI) 用于30名参与者反复观看电影片段.
- 隐藏的马尔科夫模型和模式相似性分析量化了不同时间尺度上的事件结构强度.
- 在重复观看中分析了事件结构强度的变化.
主要成果:
- 大多数大脑区域在重复中显示出稳定的事件结构强度.
- 一些区域显示了灵活的事件表示,随着重复查看而改变细粒度.
- 在特定区域减少事件结构强度与增强的记忆回忆相关.
结论:
- 大脑事件动态不是固定的,可以随着经验灵活地改变.
- 重复可以导致大脑如何表现事件的适应性变化.
- 事件表示中的神经灵活性与记忆细节有关.
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