Yoon Hyo Woon, Kircher Tilo T J
fMRI Laboratory of Brain Science Research Center, Korea Advanced Institute of Science and Technology, Daejon, Republic of Korea.
Int J Neurosci. 2005 Jun;115(6):839-49. doi: 10.1080/00207450590882235.
The purpose of the study was to examine if differences in behavioral effects in terms of facial self-recognition, compared to other identity recognition (familiar, strange) exist. Morphed versions of three facial identities were used in the experiment. The subject's own face was morphed with an unknown identity. A face of a highly familar person and of a stranger were also morphed in the same manner. This morphing procedure was repeated six times for each identity, but with six different unknown faces, in which three of the unknown faces were rated as being similar and the other three as dissimilar. The reaction times and categorical boundaries were then measured. The major finding of the study was that there were significant delayed mean reaction times for the morphed images of version "self versus similarly rated unknown faces" in contrast to the images of "self versus dissimilarly rated unknown faces" only. No significant differences were found in any of the other morphed versions. The authors interpret this result as being uniquely associated to the facial self-recognition and suggest that this association might be related to the "self effect."
该研究的目的是检验与其他身份识别（熟悉、陌生）相比，在面部自我识别方面的行为效应是否存在差异。实验中使用了三种面部身份的变形版本。受试者自己的脸与一个未知身份的脸进行了变形处理。一个非常熟悉的人的脸和一个陌生人的脸也以同样的方式进行了变形处理。每个身份的这种变形过程重复了六次，但使用了六个不同的未知面孔，其中三个未知面孔被评为相似，另外三个被评为不相似。然后测量反应时间和分类边界。该研究的主要发现是，与仅“自我与评级不同的未知面孔”的图像相比，“自我与评级相似的未知面孔”版本的变形图像的平均反应时间显著延迟。在任何其他变形版本中均未发现显著差异。作者将这一结果解释为与面部自我识别独特相关，并表明这种关联可能与“自我效应”有关。
