Department of Psychology, University of York, York, United Kingdom.
Department of Clinical, Educational and Health Psychology, University College London, United Kingdom; Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Conscious Cogn. 2021 Jan;87:103059. doi: 10.1016/j.concog.2020.103059. Epub 2020 Dec 7.
Previous studies have highlighted that affective touch delivered at slow velocities (1-10 cm/s) enhances body-part embodiment during multisensory illusions, yet its role towards whole-body embodiment is less established. Across two experiments, we investigated the role of affective touch towards subjective embodiment of a whole mannequin body within the full body illusion, amongst healthy females. Participants perceived affective touch to be more pleasant than non-affective touch, but this did not enhance subjective embodiment within the illusion and no interaction between synchrony (Experiment 1), or congruency (Experiment 2), and the velocity of touch was observed. Finally, the perceived pleasantness of touch was not modulated by subthreshold eating disorder psychopathology, as measured by means of a self-report questionnaire. Therefore, the present findings suggest that enhancement of embodiment due to affective touch may be body-part specific, and not generalise to greater ownership towards a whole body.
先前的研究表明，在多感觉错觉中，缓慢的速度（1-10 厘米/秒）的情感触觉会增强身体部位的体现，然而，它在全身体现中的作用还不太确定。在两项实验中，我们研究了情感触觉在健康女性的全身体错觉中对整个人体模型身体的主观体现的作用。参与者认为情感触觉比非情感触觉更愉快，但这并没有增强错觉中的主观体现，也没有观察到同步（实验 1）或一致性（实验 2）与触觉速度之间的相互作用。最后，触觉的愉悦感并没有被自我报告问卷衡量的亚临床饮食障碍心理病理学所调节。因此，目前的研究结果表明，情感触觉引起的体现增强可能是特定于身体部位的，而不是普遍适用于对整个身体的更大所有权。
