Does Sleep Selectively Strengthen Certain Memories Over Others Based on Emotion and Perceived Future Relevance?
Does Sleep Selectively Strengthen Certain Memories Over Others Based on Emotion and Perceived Future Relevance?
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DOI：
10.2147/nss.s286701
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发表时间：
2021
影响因子：
3.4
通讯作者：
Pace-Schott E
中科院分区：
文献类型：
--
作者：
Davidson P;Jönsson P;Carlsson I;Pace-Schott E
睡眠被发现对记忆巩固有有益的影响。此外，经常有人提出，睡眠并不能平等地加强所有的记忆。这篇综述论文的第一个目的是研究睡眠是否选择性地加强情绪陈述性记忆而不是中性记忆。我们首先通过回顾专注于睡眠/觉醒对比的文献来研究这一点，然后回顾关于睡眠期间是否有任何特定因素优先有益于情感记忆的文献，特别关注经常提出的快速眼动睡眠主要巩固情感记忆的主张。第二个目的是研究睡眠是否优先有益于记忆，这是基于其他与未来相关的线索，如奖励，测试预期或编码过程中的不同指令。再次，我们首先关注比较睡眠组和清醒组的研究，然后研究睡眠期间特定因素的贡献（分别为未来的相关性范式）。该综述显示，尽管存在一些支持，即睡眠对基于情绪或其他与未来相关的线索的某些类型的记忆更有益，但大多数研究并不支持这种效果。关于睡眠过程中的特定因素，我们的综述显示，没有可靠的睡眠变量被发现与基于情感或其他未来相关线索的某些记忆的巩固特别相关。
Sleep has been found to have a beneficial effect on memory consolidation. It has furthermore frequently been suggested that sleep does not strengthen all memories equally. The first aim of this review paper was to examine whether sleep selectively strengthens emotional declarative memories more than neutral ones. We examined this first by reviewing the literature focusing on sleep/wake contrasts, and then the literature on whether any specific factors during sleep preferentially benefit emotional memories, with a special focus on the often-suggested claim that rapid eye movement sleep primarily consolidates emotional memories. A second aim was to examine if sleep preferentially benefits memories based on other cues of future relevance such as reward, test-expectancy or different instructions during encoding. Once again, we first focused on studies comparing sleep and wake groups, and then on studies examining the contributions of specific factors during sleep (for each future relevance paradigm, respectively). The review revealed that although some support exists that sleep is more beneficial for certain kinds of memories based on emotion or other cues of future relevance, the majority of studies does not support such an effect. Regarding specific factors during sleep, our review revealed that no sleep variable has reliably been found to be specifically associated with the consolidation of certain kinds of memories over others based on emotion or other cues of future relevance.