Hills Peter J, Lewis Michael B
Department of Psychology, Anglia Ruskin University Cambridge, UK.
Front Psychol. 2012 Aug 1;3:256. doi: 10.3389/fpsyg.2012.00256. eCollection 2012.
An important question regarding face aftereffects is whether it is based on face-specific or lower-level mechanisms. One method for addressing this is to explore how adaptation in upright or inverted, photographic positive or negative faces transfers to test stimuli that are either upright or inverted and normal or negated. A series of studies are reported in which this is tested using a typical face identity aftereffect paradigm in unfamiliar and famous faces. Results showed that aftereffects were strongest when the adaptor matched the test stimuli. In addition, aftereffects did not transfer from upright adaptors to inverted test images, but did transfer from inverted adaptors to upright test images in famous faces. However, in unfamiliar faces, a different pattern was observed. The results are interpreted in terms of how identity adaptation interacts with low-level adaptation and highlight differences in the representation of famous and unfamiliar faces.
关于面部后效应的一个重要问题是，它是基于特定于面部的机制还是较低层次的机制。解决这个问题的一种方法是探究在正立或倒立、照片正片或负片的面部适应如何转移到正立或倒立、正常或反转的测试刺激上。本文报告了一系列研究，其中使用典型的面部身份后效应范式，在陌生面孔和名人面孔中对此进行了测试。结果表明，当适应刺激与测试刺激匹配时，后效应最强。此外，后效应不会从正立的适应刺激转移到倒立的测试图像，但在名人面孔中会从倒立的适应刺激转移到正立的测试图像。然而，在陌生面孔中，观察到了不同的模式。这些结果是根据身份适应与低层次适应的相互作用来解释的，并突出了名人面孔和陌生面孔表征的差异。
