Sleep bolsters schematically incongruent memories.
Sleep bolsters schematically incongruent memories.
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DOI：
10.1371/journal.pone.0269439
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发表时间：
2022
期刊：
影响因子：
3.7
通讯作者：
中科院分区：
文献类型：
--
作者：
当学习之后睡眠时，我们回忆记忆的能力会得到提高，这表明睡眠有助于记忆巩固。许多因素被认为会影响睡眠对新学到的信息的影响，例如我们是否排练该信息（例如通过重新学习或检索练习），或者该信息与我们预先存在的图解知识的一致程度。在这项预先注册的在线研究中，我们研究了排练和示意图一致性对隔夜巩固的影响。参与者学习了名词-颜色配对（例如大象-红色），并在完成基线记忆评估之前将每个配对评为合理或不可信。之后，参与者进行一段时间的配对重新研究或检索练习，然后进入夜间睡眠或白天清醒的 12 小时保留间隔。后续评估在睡眠或醒来后立即完成，并在学习后 24 小时再次完成。我们的数据表明，相对于重新测试的名词-颜色配对，重新学习的隔夜巩固被放大，但仅限于学习后不久就睡觉的情况。此外，虽然看似合理的（即示意性一致的）配对通常比不可信的（即示意性不一致的）配对更容易被记住，但相对于似是而非的记忆，睡眠对不可信的记忆的好处更大。这些发现挑战了“图式记忆在学习后睡眠期间优先得到强化”的观念。
Our ability to recall memories is improved when sleep follows learning, suggesting that sleep facilitates memory consolidation. A number of factors are thought to influence the impact of sleep on newly learned information, such as whether or not we rehearse that information (e.g. via restudy or retrieval practice), or the extent to which the information is consistent with our pre-existing schematic knowledge. In this pre-registered, online study, we examined the effects of both rehearsal and schematic congruency on overnight consolidation. Participants learned noun-colour pairings (e.g. elephant-red) and rated each pairing as plausible or implausible before completing a baseline memory assessment. Afterwards, participants engaged in a period of restudy or retrieval practice for the pairings, and then entered a 12 h retention interval of overnight sleep or daytime wakefulness. Follow-up assessments were completed immediately after sleep or wake, and again 24 h after learning. Our data indicated that overnight consolidation was amplified for restudied relative to retested noun-colour pairings, but only when sleep occurred soon after learning. Furthermore, whereas plausible (i.e. schematically congruent) pairings were generally better remembered than implausible (i.e. schematically incongruent) pairings, the benefits of sleep were stronger for implausible relative to plausible memories. These findings challenge the notion that schema-conformant memories are preferentially strengthened during post-learning sleep.
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影响因子：
2
作者：
Gais, Steffen;Lucas, Brian;Born, Jan
通讯作者：
Born, Jan
影响因子：
4.6
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
Reifman J
DOI：
10.1196/annals.1417.002
发表时间：
2008-01-01
期刊：
MOLECULAR AND BIOPHYSICAL MECHANISMS OF AROUSAL, ALERTNESS, AND ATTENTION
影响因子：
--
作者：
Lim, Julian;Dinges, David F.
通讯作者：
Dinges, David F.