语境在叙事理解过程中调节大脑状态动态和行为反应
bioRxiv : the preprint server for biology
|April 16, 2025
概括
简短的叙事启动在故事理解过程中重塑大脑活动和特征灵敏度. 语境线索动态地改变大脑状态,影响我们如何解释故事和角色细节.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 计算语言学 计算语言学
背景情况:
- 叙事理解依赖于上下文,但神经机制尚未完全理解.
- 简短的上下文启动显著影响故事的解释.
研究的目的:
- 调查简短的叙事背景如何动态塑造大脑状态,并在故事理解过程中表现出敏感性.
- 阐明依赖上下文的叙事解释背后的认知和神经机制.
主要方法:
- 使用隐藏的马尔科夫建模 (HMM) 分析的功能磁共振成像 (fMRI) 数据.
- 参与者在两个不同的叙事背景下听取了一个模两可的故事 (外遇与偏执).
- 行为分析评估了参与者对叙事证据的判断.
主要成果:
- 识别了情境不变的大脑状态 (听觉,语言,默认模式网络) 和特定情境状态 (控制,突出,视觉网络).
- 叙事背景调节了角色言语和语言特征对大脑状态激活的影响.
- 行为数据显示了角色特征对叙事判断的上下文依赖的影响.
结论:
- 简短的叙事启动在故事理解过程中积极重塑动态大脑状态.
- 语境信息选择性地调节神经对特定语言和性格特征的敏感性.
- 这揭示了大脑如何在自然环境中动态地适应解释过程.
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