Processing of emotional reactivity and emotional memory over sleep.
Processing of emotional reactivity and emotional memory over sleep.
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DOI：
10.1523/jneurosci.2532-11.2012
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发表时间：
2012-01-18
期刊：
影响因子：
--
通讯作者：
Spencer RM
中科院分区：
文献类型：
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作者：
Baran B;Pace-Schott EF;Ericson C;Spencer RM
睡眠能增强记忆，尤其是情感记忆。因此，有人认为睡眠剥夺可能会减少创伤后应激障碍。这假设情绪记忆的巩固是由情绪反应的减少所阻碍的，这种联系尚未得到研究。在本实验中，我们利用人类的偶然记忆任务，并在两个会议期间获得效价和唤醒评级，分别为12小时的白天清醒或12小时，包括过夜睡眠。对于负面和中性图片，睡眠后的识别准确率高于清醒后。虽然对负面图片的情绪反应在清醒时大大减少，但负面情绪反应在睡眠时相对保留。此外，保护情绪反应与更长的REM睡眠时间有关。然而，识别准确性与REM无关。因此，我们提供了第一个证据，证明睡眠可以增强情绪记忆，同时保持情绪反应。
Sleep enhances memories, particularly emotional memories. As such, it has been suggested that sleep deprivation may reduce post-traumatic stress disorder. This presumes that emotional memory consolidation is paralleled by a reduction in emotional reactivity, an association that has not yet been examined. In the present experiment, we utilized an incidental memory task in humans and obtained valence and arousal ratings during two sessions separated either by 12 hours of daytime wake or 12 hours including overnight sleep. Recognition accuracy was greater following sleep relative to wake for both negative and neutral pictures. While emotional reactivity to negative pictures was greatly reduced over wake, the negative emotional response was relatively preserved over sleep. Moreover, protection of emotional reactivity was associated with greater time in REM sleep. Recognition accuracy, however, was not associated with REM. Thus, we provide the first evidence that sleep enhances emotional memory while preserving emotional reactivity.