It is known that the longer an information has been memorized, the stronger is its memory trace, and that emotionally-valenced information is more solid than neutral one. We investigated whether the emotional content of recent information might enhance its memory, making it as familiar as information known for a long time. We compared ERPs alternately recorded in response to old and solid information from long term memory (i.e., faces of popular movie stars), to recently acquired emotional information (faces of fictional characters), and to completely new information (faces of previously unknown people). Initially participants familiarized with the fictional police dossiers of 10 victims of dramatic deaths (recent faces), twice a day for seven days before EEG recordings. Recent faces were compared with faces of movie stars and unknown faces in an old/new recognition task. N200 and FN400 responses were affected by face familiarity (with no difference between old and recent faces), while parietal late positivity (LP) was sensitive to temporal recency, being it greater to old than recent faces. Interestingly, LP amplitude was similar for old and recent own-sex faces (victims) that were therefore equally memorable. It is shown that emotional memory can overcome temporal recency thus improving memory recall.

中文翻译：

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记住面孔：情绪化合价和时态的影响。

众所周知，信息存储的时间越长，其记忆痕迹就越强，具有情感价值的信息比中立的信息更可靠。我们调查了最近信息的情感内容是否会增强其记忆力，使其与长时间已知的信息一样熟悉。我们比较了根据长期记忆中的旧的和可靠的信息（即流行电影明星的面孔），最近获得的情绪信息（虚构人物的面孔）和全新的信息（以前未知的人的面孔）交替记录的ERP。 。最初，参与者熟悉10名戏剧性死亡（最近的面孔）受害者的虚构警察档案，每天两次，历时7天，然后记录脑电图。在新旧识别任务中，将最近的面孔与电影明星的面孔和未知面孔进行了比较。N200和FN400的响应受面部熟悉度的影响（旧面部和新面部之间没有差异），而顶叶晚期阳性（LP）对颞下垂很敏感，与最近的面部相比，其对老年的敏感性更大。有趣的是，LP振幅对于旧的和最近的自慰面孔（受害者）相似，因此同样令人难忘。结果表明，情绪记忆可以克服短暂性，从而改善记忆记忆。LP振幅对于旧的和最近的自性别面孔（受害者）相似，因此同样令人难忘。研究表明，情绪记忆可以克服短暂的新陈代谢，从而改善记忆记忆。LP振幅对于旧的和最近的自性别面孔（受害者）相似，因此同样令人难忘。结果表明，情绪记忆可以克服短暂性，从而改善记忆记忆。