The Sleeping Brain's Influence on Verbal Memory: Boosting Resistance to Interference
The Sleeping Brain's Influence on Verbal Memory: Boosting Resistance to Interference
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DOI：
10.1371/journal.pone.0004117
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发表时间：
2009-01-07
期刊：
影响因子：
3.7
通讯作者：
Stickgold, Robert
中科院分区：
文献类型：
--
作者：
Ellenbogen, Jeffrey M.;Hulbert, Justin C.;Stickgold, Robert
记忆会进化在学习新东西后，大脑启动一套复杂的学习后处理，以促进回忆（即，合并）。有证据表明，睡眠是这种变化的决定因素之一。但是，每当一项情景记忆的行为研究表明睡眠有益时，批评者就断言，睡眠只能暂时避免干扰的破坏性影响，否则这些干扰会在清醒时产生。为了评估睡眠对言语记忆的潜在积极作用，我们比较了睡眠后的记忆回忆，在测试前有和没有干扰。我们证明了，睡眠后的言语记忆回忆表现比清醒后更好。当使用干扰测试时，这种差异更加明显。通过在睡眠后引入干扰，这项研究证实了一个实验范式，证明了睡眠在巩固记忆方面的积极作用，并揭示了这种益处的巨大程度。
Memories evolve. After learning something new, the brain initiates a complex set of post-learning processing that facilitates recall (i.e., consolidation). Evidence points to sleep as one of the determinants of that change. But whenever a behavioral study of episodic memory shows a benefit of sleep, critics assert that sleep only leads to a temporary shelter from the damaging effects of interference that would otherwise accrue during wakefulness. To evaluate the potentially active role of sleep for verbal memory, we compared memory recall after sleep, with and without interference before testing. We demonstrated that recall performance for verbal memory was greater after sleep than after wakefulness. And when using interference testing, that difference was even more pronounced. By introducing interference after sleep, this study confirms an experimental paradigm that demonstrates the active role of sleep in consolidating memory, and unmasks the large magnitude of that benefit.