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Retrieval orientation for memories encoded in emotional contexts: An ERP study
Brain and Cognition ( IF 2.2 ) Pub Date : 2021-06-26 , DOI: 10.1016/j.bandc.2021.105769
Tzu-Ling Liu, Szu-Ti Lin, Shih-kuen Cheng

Retrieval orientation, which is involved in recognition cue processing, optimizes goal-directed memory retrieval. However, whether the emotionality of encoding context affects subsequent retrieval orientation remains unclear. To clarify this, neutral objects were paired with either emotional or neutral background scenes during the study phase. During recognition test, only neutral objects were presented. The ERP analysis on the correctly rejected new items indicated that at least two processes were modulated by the emotionality of memory: 1) the arousal-modulated effect on the right-frontal scalp, and 2) the posterior-distributed effect, which was found to differentiate between memories with positive and negative valence. Furthermore, the magnitude of posterior-distributed effect was correlated with affective rating. The topographical distribution indicated that retrieval orientation for positive memories involves at least partially different neural circuitries from neutral or negative memories. Our results suggest that the emotionality of encoding context affects subsequent retrieval orientation.



中文翻译:

情绪环境中编码记忆的检索方向:一项 ERP 研究

检索方向,涉及识别线索处理,优化目标导向的记忆检索。然而,编码上下文的情绪是否会影响后续的检索方向尚不清楚。为了澄清这一点,在研究阶段,中性物体与情感或中性背景场景配对。在识别测试中,只呈现中性物体。对正确拒绝的新项目的 ERP 分析表明,至少有两个过程受到记忆情绪的调节:1) 对右额头皮的唤醒调节作用,以及 2) 后分布效应,发现区分具有正价和负价的记忆。此外,后分布效应的大小与情感评级相关。地形分布表明,积极记忆的检索方向涉及与中性或消极记忆至少部分不同的神经回路。我们的结果表明,编码上下文的情绪会影响后续的检索方向。

更新日期:2021-06-28
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