在暴露于错误信息之前的警告调节了内存编码
Jessica M Karanian1, Ayanna K Thomas2, Elizabeth Race2
1Department of Psychological and Brain Sciences, Fairfield University, 1073 North Benson Road, Fairfield, CT, 06824, USA. jessica.karanian@fairfield.edu.
Cognitive, affective & behavioral neuroscience
|March 20, 2024
概括
暴露于误导性信息之前的警告可以减少记忆的扭曲. 预警通过在编码事件后细节时调节前部和听觉区域的神经活动来提高记忆准确性.
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
背景情况:
- 暴露于误导性的事件后信息可能会扭曲目击者的记忆报告.
- 错误信息效应描述了这种记忆障碍.
- 关于信息可靠性的预警可以减轻这种影响.
研究的目的:
- 通过在错误信息编码过程中改变神经活动来调查预警是否可以提高记忆准确度.
- 检查预警的保护作用背后的神经机制.
主要方法:
- 功能磁共振成像 (fMRI) 被用于重复检索错误信息范式.
- 参与者目睹了一个事件,接收了事件后的信息 (一致,中立,误导),并完成了记忆测试.
- 预警组与没有预警的对照组进行了比较.
主要成果:
- 接受预警的参与者对错误信息的敏感性降低.
- 在误导性试验期间,预先警告的参与者表现出额头活动 (侧面PFC,ACC) 的增加.
- 在预警组中观察到听觉和语义处理区域的总体减少.
结论:
- 预警通过在事件后信息编码过程中调节神经活动来提高记忆准确度.
- 参与源代码和冲突检测的前沿区域是这种保护效应的关键.
- 错误信息暴露期间的神经活动的变化预测了对记忆扭曲的行为保护.
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