Emotion enhances remembrance of neutral events past
Emotion enhances remembrance of neutral events past
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DOI：
10.1073/pnas.0506308103
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发表时间：
2006-01-31
影响因子：
11.1
通讯作者：
Gabrieli, JDE
中科院分区：
文献类型：
--
作者：
Anderson, AK;Wais, PE;Gabrieli, JDE
情感事件在记忆中具有特殊的重要性。这可能反映了在编码过程中对这些事件的更多关注，和/或在情绪事件过去后记忆巩固的增强。在这里，我们展示了被唤起的情绪唤醒导致长期记忆的逆行增强，决定了以后会记住或忘记什么。受试者以不同的时间间隔看到中性面孔和房屋的照片，然后看到激动人心的场景。自我报告的情绪唤醒反应预测逆行增强记忆先前的中性事件在1周的延迟识别记忆测试。在较长的图片场景的时间间隔，没有发现增强，暗示一个关键的窗口，情绪唤醒必须发生逆行记忆增强。对情绪唤醒的后编码操作特别增强了有意识的回忆，而不是基于熟悉度的辨别。另一项研究显示，在那些令人难忘但不令人兴奋的独特场景之前的照片没有逆行增强。这些发现表明情绪唤醒在情景记忆巩固的编码后增强中具有重要作用。
Emotional events are bestowed with special prominence in memory. This may reflect greater attention oriented to these events during encoding, and/or enhancement of memory consolidation after emotional events have passed. Here we show invoked emotional arousal results in a retrograde enhancement of long-term memory, determining what will later be remembered or forgotten. Subjects saw pictures of neutral faces and houses followed by emotionally arousing scenes at varying intervals. Self-reported emotional arousal responses predicted a retrograde enhancement of memory for preceding neutral events in a 1-week delayed recognition memory test. At longer picture-scene intervals, no enhancement was found, implicating a critical window in which emotional arousal must occur for retrograde memory enhancement. Postencoding manipulation of emotional arousal specifically enhanced conscious recollection rather than familiarity-based discrimination. An additional study revealed no retrograde enhancement for pictures preceding highly memorable, but nonarousing, distinctive scenes. These findings indicate an important role for emotional arousal in the postencoding enhancement of episodic memory consolidation.