Attentional capture by task-irrelevant fearful faces is revealed by the N2pc component.

Attentional capture by task-irrelevant fearful faces is revealed by the N2pc component.
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DOI:
10.1016/j.biopsycho.2006.06.008
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发表时间:
2007-01
影响因子:
2.6
通讯作者:
Kiss, Monika
Kiss, Monika
中科院分区:
医学3区
文献类型:
--
作者:
Eimer, Martin;Kiss, Monika

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我们测量了N2PC组件作为注意力选择的电生理指标,以调查恐惧的面孔是否可以吸引注意力,即使它们完全与任务无关,并且注意力集中在另一个要求苛刻的视觉监测任务上。参与者必须检测固定交叉的罕见亮度变化,同时忽略包含固定左侧或右侧的面孔单体(中性面孔中的恐惧面孔,或恐惧面孔中的中性面孔)的刺激阵列。在没有目标亮度变化的试验中,N2PC由固定旁边的恐惧面孔引起,无论他们是否是单身,这表明不相关的恐惧面孔可以使注意力的空间分布发生偏差。N2PC可怕的面孔衰减时,面对阵列同时提出的目标亮度变化,这表明并发目标处理减少注意力捕捉的情绪突出事件。
We measured the N2pc component as an electrophysiological indicator of attentional selection to investigate whether fearful faces can attract attention even when they are entirely task-irrelevant and attention is focused on another demanding visual monitoring task. Participants had to detect infrequent luminance changes of the fixation cross, while ignoring stimulus arrays containing a face singleton (a fearful face among neutral faces, or neutral face among fearful faces) to the left or right of fixation. On trials without a target luminance change, an N2pc was elicited by fearful faces presented next to fixation, irrespective of whether they were singletons or not, demonstrating that irrelevant fearful faces can bias the spatial distribution of attention. The N2pc to fearful faces was attenuated when face arrays were presented simultaneously with a target luminance change, suggesting that concurrent target processing reduces attentional capture by emotional salient events.
DOI: 10.1037//0022-3514.80.3.381
发表时间: 2001-03-01
影响因子: 7.6
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