ABSTRACT

Episodes with an emotional component preoccupy memory formation and this advantage facilitates their preservation and mitigates the impact of interfering episodes. The present study examined the relation of the emotional dimensions of original and interfering episodes to the memory outcome, using a reconsolidation paradigm. In a between-subjects design, 102 healthy young adults were presented with an emotional or neutral image and learned either an emotional or neutral story, respectively (day 1). On day 2, experimental groups were presented with an image of the opposite emotionality, reactivated the original story, and learned a story of the opposite emotionality. On day 3, experimental and control groups were tested for their memory on target and filler clues of the original story and rated both stories for arousal and valence. Overall, there was evidence of interference on the long-term retention of target clues only for the neutral story (i.e. when the interfering story was emotional), and of filler clues for both types of stories. Moreover, individual target clue retention rates correlated with the arousal ratings for both the original neutral story and the interfering emotional story, while they were not related to arousal ratings for the original emotional story or the interfering neutral one.

摘要

带有情绪成分的情节会占据记忆的形成，这一优势有助于它们的保存并减轻干扰情节的影响。本研究使用再巩固范式检查了原始和干扰事件的情绪维度与记忆结果的关系。在被试间设计中，102 名健康的年轻人被展示了一个情绪化或中性的图像，并分别学习了一个情绪化或中性的故事（第 1 天）。在第 2 天，实验组被呈现相反情绪的图像，重新激活原始故事，并学习一个相反情绪的故事。在第 3 天，测试实验组和对照组对原始故事的目标和填充线索的记忆，并对两个故事的唤醒度和效价进行评分。总体，有证据表明仅对中性故事（即当干扰故事是情绪化的）目标线索的长期保留有干扰，并且两种类型的故事都存在填充线索。此外，个体目标线索保留率与原始中性故事和干扰情感故事的唤醒评级相关，而它们与原始情感故事或干扰中性故事的唤醒评级无关。