Brain processes in emotional perception: Motivated attention
Brain processes in emotional perception: Motivated attention
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DOI：
10.1080/02699930341000239
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发表时间：
2004-08-01
影响因子：
2.6
通讯作者：
Lang, PJ
中科院分区：
文献类型：
--
作者：
Schupp, HT;Cuthbert, BN;Lang, PJ
当参与者观看按内容类别组织的具有不同动机意义的情绪图片时，记录了脑电位和眨眼反射。图片呈现时的事件相关电位显示，对色情场景以及威胁和残害场景的晚期正电位最大，这表明对被认为能强烈激活食欲和防御动机系统的内容关注度提高。通过对事件相关电位的P3成分在后期间隔惊吓探测中的抑制来测量，色情内容在观看间隔内也表现出最大的持续关注度。在愉悦内容中，探测P3波幅与报告的唤醒程度呈负相关；然而，在所有不愉悦内容中，P3都受到类似的抑制。与先前的研究结果一致，当参与者观看描绘威胁、暴力死亡和色情的图片时，惊吓反射的调节作用最大。总体而言，这些数据被视为与情绪感知的动机注意模型一致。
Brain potentials and blink reflexes were recorded while participants viewed emotional pictures organised into content categories that varied in motivational significance. Event-related potentials at picture onset showed the largest late positive potentials to erotic scenes and to scenes of threat and mutilation, suggesting heightened attention to contents that are presumed to strongly activate appetitive and defensive motivational systems. Erotic content also showed the greatest sustained attention over the viewing interval as measured by the inhibition of the P3 component of the event-related potential to the late interval startle probe. Among pleasant contents, probe P3 amplitude was inversely related to reported arousal; however, P3 was similarly inhibited across all unpleasant contents. Replicating previous findings, greatest modulation of the startle reflex occurred when participants viewed pictures depicting threat, violent death, and erotica. Overall, the data were seen as consistent with a motivated attention model of emotional perception.