Evidence for a size underestimation of upright faces
Evidence for a size underestimation of upright faces
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DOI：
10.1068/p7058
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发表时间：
2012-01-01
期刊：
影响因子：
1.7
通讯作者：
Kitaoka, Akiyoshi
中科院分区：
文献类型：
--
作者：
Araragi, Yukyu;Aotani, Takehiro;Kitaoka, Akiyoshi
我们使用恒定刺激的方法定量地检验了直立和倒立脸之间感知大小的差异。刺激物包括8张人脸图像，由Kitaoka （2007, http://www.psy.ritsumei.ac.jp/similar）和akitaoka/kao-e.html （2008, Cognitive Psychology 5 177-185）制作的两张卡通人脸修改而成，以及6张照片人脸，其中包括Thompson （2010, http://illusioncontest.neuralcorrelate.com/2010/the-fat-face-thin-fft-illusion/）使用的一张照片人脸。实验1表明，直立的脸和轮廓被认为明显小于倒置的脸和轮廓。此外，面部刺激条件下的尺寸低估量显著大于轮廓刺激条件下的尺寸低估量。实验2表明，直立的脸被认为明显小于旋转90度和270度的脸，而倒置的脸被认为不明显大于旋转90度和270度的脸。实验3显示，被试对直立脸的感知显著小于直立和倒立轮廓，而被试对倒立脸的感知不显著大于直立和倒立轮廓。实验4和5显示，直立拍照的脸也被认为明显比倒立拍照的脸小。这些结果为直立面部的尺寸低估提供了定量证据。
We quantitatively examined the difference in perceived size between upright and inverted faces using the method of constant stimuli. The stimuli included eight face images modified from two cartoon faces produced by Kitaoka (2007, http://www.psy.ritsumei.ac.jp/similar to akitaoka/kao-e.html and 2008, Cognitive Psychology 5 177-185) and six photographic faces, including a photographic face used by Thompson (2010, http://illusioncontest.neuralcorrelate.com/2010/the-fat-face-thin-fft-illusion/). Experiment I showed that an upright face and outline were perceived to be significantly smaller than an inverted face and outline, respectively. Moreover, the amount of the size underestimation in the face stimulus condition was significantly larger than that in the outline stimulus condition. Experiment 2 showed that an upright face was perceived to be significantly smaller than 90 and 270 rotated faces, whereas an inverted face was not perceived to be significantly larger than a 90 or 270 rotated face. Experiment 3 showed that upright faces were perceived to be significantly smaller than upright and inverted outlines, whereas inverted faces were not perceived to be significantly larger than upright or inverted outlines. Experiments 4 and 5 showed that upright photographic faces were also perceived to be significantly smaller than inverted photographic faces. These results provide quantitative evidence for a size underestimation of upright faces.