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The time course of emotional picture processing: an event-related potential study using a rapid serial visual presentation paradigm

机译：情感图片处理的时程：使用快速串行视觉呈现范例进行的与事件相关的潜在研究

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The present study recorded event-related potentials using rapid serial visual presentation paradigm to explore the time course of emotionally charged pictures. Participants completed a dual-target task as quickly and accurately as possible, in which they were asked to judge the gender of the person depicted (task 1) and the valence (positive, neutral, or negative) of the given picture (task 2). The results showed that the amplitudes of the P2 component were larger for emotional pictures than they were for neutral pictures, and this finding represents brain processes that distinguish emotional stimuli from non-emotional stimuli. Furthermore, positive, neutral, and negative pictures elicited late positive potentials with different amplitudes, implying that the differences between emotions are recognized. Additionally, the time course for emotional picture processing was consistent with the latter two stages of a three-stage model derived from studies on emotional facial expression processing and emotional adjective processing. The results of the present study indicate that in the three-stage model of emotion processing, the middle and late stages are more universal and stable, and thus occur at similar time points when using different stimuli (faces, words, or scenes).
机译：本研究使用快速连续视觉呈现范例记录了与事件相关的电位，以探索充满情感的图片的时间过程。参与者尽可能快速，准确地完成了双重目标任务，要求他们判断所描绘人物的性别（任务1）和给定图片的效价（阳性，中性或阴性）（任务2） 。结果表明，情感图片中的P2分量的振幅大于中性图片中的P2分量的振幅，这一发现代表了区分情感刺激与非情感刺激的大脑过程。此外，正片，中性片和负片会以不同的幅度激发出后期的正电位，这意味着可以识别情绪之间的差异。此外，情感图片处理的时间过程与从情感面部表情处理和情感形容词处理研究得出的三阶段模型的后两个阶段一致。本研究的结果表明，在情绪处理的三阶段模型中，中后期更加普遍和稳定，因此在使用不同刺激（面部，单词或场景）时会在相似的时间点发生。

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