The involvement of distinct visual channels in rapid attention towards fearful facial expressions
The involvement of distinct visual channels in rapid attention towards fearful facial expressions
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DOI：
10.1080/02699930441000454
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发表时间：
2005-09-01
影响因子：
2.6
通讯作者：
Vuilleumier, P
中科院分区：
文献类型：
--
作者：
Holmes, A;Green, S;Vuilleumier, P
本文报道了五个实验，证明了面孔的低空间频率成分是产生快速注意反应的关键，对恐惧的面部表情。在我们的主要实验中，低空间频率（LSF）或高空间频率（HSF）的脸对，包括一个恐惧和一个中性的表情，在计算机屏幕上呈现了一段时间。参与者被要求尽可能快地识别一个酒吧目标的方向，立即取代其中一张脸。与LSF中性面孔相比，当目标替换LSF恐惧面孔的位置时，反应更快。相比之下，有没有差异的反应，以目标取代HSF恐惧与HSF中性面孔，这种促进空间定向专门发生在短时间间隔之间的面孔和目标，是一致的快速处理的恐惧线索从LSF输入，可以用来引导注意力对威胁事件。
This paper reports five experiments demonstrating that the low spatial frequency components of faces are critical to the production of rapid attentional responses towards fearful facial expressions. In our main experiments, low spatial frequency (LSF) or high spatial frequency (HSF) face pairs, consisting of one fearful and one neutral expression, were presented on a computer screen for a brief period. Participants were required to identify as quickly as possible the orientation of a bar target that immediately replaced one of the faces. Responses were faster when targets replaced the location of LSF fearful faces, compared with LSF neutral faces. By contrast, there were no differences between responses to targets replacing HSF fearful versus HSF neutral faces, This facilitation in spatial orienting occurred specifically with short time intervals between faces and target, and is consistent with a rapid processing of fear cues from LSF inputs that can serve to guide attention towards threat events.