在人体REM睡眠中,有针对性的记忆重新激活会引起可检测的重新激活
Mahmoud E A Abdellahi1, Anne C M Koopman1, Matthias S Treder2
1School of Psychology, Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff, United Kingdom.
eLife
|June 23, 2023
概括
这项研究提供了人类在快速眼动 (REM) 睡眠期间记忆重新激活的第一个证据. 在REM睡眠期间的有针对性的记忆再激活 (TMR) 与性能改善有关,这表明REM睡眠在记忆巩固中起着作用.
科学领域:
- 神经科学是一个神经科学.
- 睡眠科学 睡眠科学
- 认知心理学 认知心理学
背景情况:
- 记忆的重新激活是在非REM睡眠中建立的.
- 它在REM睡眠期间的发生仍然是睡眠研究中的重要辩论.
研究的目的:
- 通过针对性记忆再激活 (TMR) 来研究REM睡眠期间的记忆再激活.
- 为了确定REM睡眠中的TMR是否会影响基于清醒学习的表现.
主要方法:
- 通过在清醒状态下将听觉线索与学习材料配对,利用目标记忆重新激活 (TMR).
- 在随后的REM睡眠中重新呈现听觉线索,以探测记忆的重新激活.
- 使用机器学习分类器来检测REM睡眠中的与任务相关的运动图像重新激活.
主要成果:
- 成功检测到任务相关的运动图像从人类REM睡眠中的清醒状态的重新激活.
- 检测到的记忆重新激活的强度与一夜间的性能改善正相关.
结论:
- 提供了通过TMR在人类REM睡眠中对记忆的重新激活的第一个直接证据.
- 表明REM睡眠有助于记忆巩固过程,特别是那些涉及运动图像的过程.
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