探索语义和感知虚假记忆形成的神经基础
J T West1, L Dubec1, R L Wagner1
1Department of Psychology, Pennsylvania State University, University Park, United States.
Neuropsychologia
|November 27, 2025
概括
虚假记忆,无论是语义还是感知,都涉及重叠的大脑区域,如中间前额叶皮层. 不同的神经过程也会导致语义和感知错误记忆的形成.
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.
背景情况:
- 虚假记忆发生在人们记住以前没有遇到过的信息时.
- 这些虚假记忆可能来自于与现有记忆语义上或感知上相似的新奇信息.
- 了解虚假记忆的神经基础对于解决其现实世界后果至关重要.
研究的目的:
- 为了研究底层的语义和感知虚假记忆的神经过程.
- 确定这些过程是否重叠或是不同的.
- 检查虚假记忆中总域和特定域神经活动的作用.
主要方法:
- 功能磁共振成像 (fMRI) 用于扫描30个年轻的成年人在记忆检索.
- 参与者编码了图像和单词的列表.
- 针对目标和诱 (语义上或感知上类似的新项目) 进行了记忆判断.
主要成果:
- 虚假记忆活动,无论类型如何,都显示在中间前额叶皮质和下额叶皮质的重叠激活.
- 语义虚假记忆与前额和顶部区域的明显激活有关.
- 感知虚假记忆在额头和尾区域显示出独特的激活.
- 多变量分析揭示了前面对面区域内的语义和感知项目的独特的神经表征.
结论:
- 虚假记忆的形成涉及到共享 (域一般) 和独特 (域特定) 的神经过程.
- 神经模式表明,语义和感知虚假记忆是可以区分的.
- 这些发现有助于理解记忆错误的复杂神经基础.
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