Farmer Harry, Cataldo Antonio, Adel Nagela, Wignall Emma, Gallese Vittorio, Deroy Ophelia, Hamilton Antonia, Ciaunica Anna
1Institute of Cognitive Neuroscience, University College London, Gower Street, London, WC1E 6BT, UK.
2School of Human Sciences, University of Greenwich, Dreadnought Building, London, SE10 9LS, UK.
Multisens Res. 2020 Oct 14:1-22. doi: 10.1163/22134808-bja10038.
There is a growing consensus that our most fundamental sense of self is structured by the ongoing integration of sensory and motor information related to our own body. Depersonalisation (DP) is an intriguing form of altered subjective experience in which people report feelings of unreality and detachment from their sense of self. The current study used the visual remapping of touch (VRT) paradigm to explore self-bias in visual-tactile integration in non-clinical participants reporting high and low levels of depersonalisation experiences. We found that the high-DP group showed an increased overall VRT effect but a no-self-face bias, instead showing a greater VRT effect when observing the face of another person. In addition, across all participants, self-bias was negatively predicted by the occurrence of anomalous body experiences. These results indicate disrupted integration of tactile and visual representations of the bodily self in those experiencing high levels of DP and provide greater understanding of how disruptions in multisensory perception of the self may underlie the phenomenology of depersonalisation.
越来越多的人达成共识，即我们最基本的自我意识是由与自身身体相关的感官和运动信息的持续整合构建而成的。人格解体（DP）是一种引人入胜的主观体验改变形式，人们在其中报告出与自我意识脱节的不真实感。当前的研究使用视觉触觉重映射（VRT）范式，来探究报告了高低不同程度人格解体体验的非临床参与者在视觉触觉整合中的自我偏差。我们发现，高DP组显示出总体VRT效应增加，但不存在自我面孔偏差，相反，在观察他人面孔时表现出更大的VRT效应。此外，在所有参与者中，异常身体体验的发生对自我偏差具有负向预测作用。这些结果表明，在经历高水平DP的个体中，身体自我的触觉和视觉表征整合受到破坏，并为自我多感官感知的破坏如何可能构成人格解体现象学基础提供了更深入的理解。
