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首页> 外文期刊>Biological Psychology >Affective picture processing as a function of preceding picture valence: An ERP analysis
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Affective picture processing as a function of preceding picture valence: An ERP analysis

机译：情感图片处理与先前图片价格的关系：ERP分析

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Event-related brain potential (ERP) studies consistently revealed that a relatively early (early posterior negativity; EPN) and a late (late positive potential; LPP) ERP component differentiate between emotional and neutral picture stimuli. Two studies examined the processing of emotional stimuli when preceded either by pleasant, neutral, or unpleasant context images. In both studies, distinct streams of six pictures were shown. In Study 1, hedonic context was alternated randomly across the 180 picture streams. In Study 2, hedonic context sequences were blocked, resulting in 60 preceding sequences of pleasant, neutral, and unpleasant context valence, respectively. The main finding was that the valence of the preceding picture sequence had no significant effect on the emotional modulation of the EPN and LPP components. However, previous results were replicated in that emotional stimulus processing was associated with larger EPN and LPP components as compared to neutral pictures. These findings suggest that the prioritized processing of emotional stimuli is primarily driven by the valence of the current picture.
机译：事件相关的脑电势（ERP）研究一致显示，相对早期（早期后负性; EPN）和晚期（晚期正电势; LPP）ERP组件可区分情绪刺激和中性图画刺激。两项研究检查了愉悦，中性或令人不快的情境图像之前的情绪刺激处理。在两项研究中，均显示了六张图片的不同流。在研究1中，享乐语境在180个图片流中随机交替。在研究2中，享乐语境序列被阻断，分别导致60个先前的愉快，中性和不愉快的语境价序列。主要发现是，先前图像序列的价态对EPN和LPP成分的情绪调节没有显着影响。但是，以前的结果可以重复，因为与中性图片相比，情绪刺激处理与更大的EPN和LPP分量相关。这些发现表明，对情绪刺激的优先处理主要是由当前图片的价格决定的。

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