Department of Psychology, Faculty of Letters, Akdeniz University, Antalya, Turkey.
Soc Neurosci. 2021 Apr;16(2):189-205. doi: 10.1080/17470919.2021.1886983. Epub 2021 Feb 28.
Enfacement illusion is a visuo-tactile illusion elicited by being touched on one's own face while observing another face being touched at the same time, resulting in a change in self-face recognition. Left-face stimulation is usually preferred in enfacement studies. We investigated whether left or right face stimulation has any effect on the vividness of the illusion and if any relationship exists between emphatic abilities, personality traits and vividness of the illusion. The enfacement procedure included two stimuli: a cotton swab touching to face and a syringe approaching to face. We assessed subjective feeling of the illusion using a questionnaire and morphed face evaluations between self and other. Additionally, galvanic skin response (GSR) was measured. The results indicated that the syringe elicited higher GSR than that of touching and left face stimulation was much more sensitive in discriminating synchronous and asynchronous conditions. We found a significant relationship between self-to-other morph evaluations and GSR when the left side of the face was stimulated synchronously. However, a significant relationship was found between other-to-self evaluations and GSR when the right side of the face was stimulated asynchronously. We also noted significant correlations between vividness of the illusion and emphatic concern, extraversion and psychoticism traits.
人面幻想错觉是一种视触觉错觉，当自己的脸被触摸的同时观察到另一个人的脸被触摸，会导致自我面孔识别的变化。在人面幻想错觉研究中，通常更喜欢使用左侧面孔刺激。我们研究了左侧或右侧面孔刺激对错觉逼真度的影响，以及同理心能力、个性特征和错觉逼真度之间是否存在任何关系。人面幻想错觉实验包括两种刺激：棉签触脸和注射器接近脸部。我们使用问卷评估错觉的主观感受，并对自我和他人之间的面孔进行变形评估。此外，还测量了皮肤电反应（GSR）。结果表明，注射器引起的 GSR 比棉签触脸高，并且左侧面孔刺激在区分同步和异步条件时更为敏感。当左侧面孔同步刺激时，我们发现自我到他人的形态评估与 GSR 之间存在显著关系。然而，当右侧面孔异步刺激时，我们发现他人到自我的评估与 GSR 之间存在显著关系。我们还注意到错觉逼真度与同理心关注、外向性和精神病特质之间存在显著相关性。
