Emotional influences on perception and working memory.
Emotional influences on perception and working memory.
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DOI：
10.1080/02699931.2016.1213703
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发表时间：
2017-09-01
影响因子：
2.6
通讯作者：
Berenbaum, Howard
中科院分区：
文献类型：
--
作者：
Hur, Juyoen;Iordan, Alexandru D;Berenbaum, Howard
尽管在阐明情绪对认知的影响方面已经取得了稳步进展，但仍不清楚情绪何时以及为何会损害或促进认知。本研究分别使用修改后的 0-back 和 2-back 任务调查了情绪对感知和工作记忆 (WM) 影响的机制。首先，结果表明注意力集中调节情绪对感知的影响。具体来说，当情绪与任务相关时，它会促进感知任务的表现，但当与任务无关时，它会损害表现。在高 WM 负荷下，情绪对知觉的不同行为影响作为注意力焦点的函数而减弱。其次，注意力集中并不直接调节情绪对WM的影响，而是其影响取决于内部表征之间的动态关系。具体来说，当材料已经在线保存且新输入具有匹配的情绪（例如两者都是负面的）时，与不在线保存时相比，WM 的表现更差。我们提出，“自下而上”和“自上而下”处理之间对有限认知资源的竞争解释了情绪对感知和思维管理影响的本质。
Although there has been steady progress elucidating the influence of emotion on cognition, it remains unclear precisely when and why emotion impairs or facilitates cognition. The present study investigated the mechanisms involved in the influence of emotion on perception and working memory (WM), using modified 0-back and 2-back tasks, respectively. First, results showed that attentional focus modulated the impact of emotion on perception. Specifically, emotion facilitated perceptual task performance when it was relevant to the task, but it impaired performance when it was irrelevant to the task. The differential behavioural effect of emotion on perception as a function of attentional focus diminished under high WM load. Second, attentional focus did not directly modulate the impact of emotion on WM, but rather its influence depended on the dynamic relationship between internal representations. Specifically, WM performance was worse when the material already being held online and the new input were of matching emotions (e.g. both were negative), compared to when they were not. We propose that the competition between "bottom-up" and "top-down" processing for limited cognitive resources explains the nature of the influence of emotion on both perception and WM.