The effects of sleep on episodic memory in older and younger adults
The effects of sleep on episodic memory in older and younger adults
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DOI：
10.1080/09658211003601548
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发表时间：
2010-01-01
期刊：
影响因子：
2.1
通讯作者：
Moscovitch, Morris
中科院分区：
文献类型：
--
作者：
Aly, Mariam;Moscovitch, Morris
睡眠对情景记忆的益处的证据仍然难以捉摸。此外，我们对睡眠对情景记忆影响的年龄相关变化知之甚少。我们报告的这项研究是第一次比较睡眠对年轻人和老年人情景记忆的影响。在包括睡眠和相等的清醒时间的保持间隔之后，对故事和个人事件的记忆进行了评估。老年人和年轻人在睡眠后对这两种类型的材料的记忆都上级清醒后的记忆。老年人在清醒状态下对个人事件的遗忘量比年轻人少，这可能是由于自发的排练。在老年人中，睡眠时间与睡眠益处高度相关，这表明总睡眠量和/或睡眠某些阶段所花费的时间是与年龄相关的记忆巩固差异或睡眠期间免受干扰的重要因素。
Evidence on sleep-dependent benefits for episodic memory remains elusive. Furthermore we know little about age-related changes on the effects of sleep on episodic memory. The study we report is the first to compare the effects of sleep on episodic memories in younger and older adults. Memories of stories and personal events were assessed following a retention interval that included sleep and following an equal duration of wakefulness. Both older and younger adults have superior memory following sleep compared to following wakefulness for both types of material. Amount of forgetting of personal events was less during wakefulness in older adults than in younger adults, possibly due to spontaneous rehearsal. Amount of time spent sleeping correlated highly with sleep benefit in older adults, suggesting that quantity of total sleep, and/or time spent in some stages of sleep, are important contributors to age-related differences in memory consolidation or protection from interference during sleep.