Araragi Y, Aotani T, Kitaoka A, 2012, "Evidence for a size underestimation of upright faces" Perception 41(7) 840 – 853
Download citation data in RIS format
Evidence for a size underestimation of upright faces
Yukyu Araragi, Takehiro Aotani, Akiyoshi Kitaoka
Abstract. 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/~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 1 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.
Keywords: size illusion, face perception, upright faces, underestimation, face inversion effect
Full-text PDF size: 1313 Kb
Your computer (IP address: 18.104.22.168) has not been recognised as being on a network authorised to view the full text or references of this article. If you are a member of a university library that has a subscription to the journal, please contact your serials librarian (subscriptions information).