压力可以增强对先前编码的事件的记忆,这取决于压力因素的回忆
Antonia Lilja1, Guillen Fernandez2, Lars Schwabe3
1Department of Cognitive Psychology, Institute of Psychology, University of Hamburg, 20146 Hamburg, Germany.
Learning & memory (Cold Spring Harbor, N.Y.)
|December 16, 2024
概括
压力事件可以增强前面的中性事件的记忆,但只有当压力因素本身被记住时. 这种对周围中性信息的记忆增强取决于不同的压力因素的记忆巩固.
科学领域:
- 认知神经科学 认知神经科学
- 心理学 心理学 心理学
- 记忆研究 记忆研究
背景情况:
- 压力事件往往很好地回忆起来,但它们对记忆的精确影响对于相邻的中性信息和潜在的神经机制需要进一步阐明.
- 现有的研究表明,压力可以影响记忆,但它增强或损害非压力相关信息的记忆的条件尚未完全理解.
研究的目的:
- 为了调查压力是否会增强记忆力,对围绕压力因素的中性事件进行研究.
- 要确定这种效应是否取决于压力源的记忆表示的明确性.
- 探索与压力相关的线索在调节记忆中对中性刺激的作用.
主要方法:
- 122名健康参与者经历了压力或对照条件.
- 图像编码发生在实验操作之前和之后.
- 24小时后,对压力/控制情节和编码图像的记忆进行了评估,其中一些刺激之前有与压力相关的线索.
主要成果:
- 紧张的情节导致了与控制情节相比,对其核心特征的增强记忆优先级.
- 在压力因素之前呈现的中性图像的记忆得到了改善,但仅在那些对压力因素本身表现出强烈记忆优先级的个体中.
- 对于压力因素后编码的刺激,没有观察到记忆增强,暗示机制也没有显著影响记忆.
结论:
- 压力事件使周围的中性信息的记忆巩固变得容易,只有当压力因素的记忆被强大地巩固时.
- 压力因素的记忆表现的明确性是观察相邻中性内容中压力诱导的记忆增强的关键因素.
- 这些发现强调了自我表现在记忆中对与压力有关的影响对周围中立信息的重要性.
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