Petkova Valeria I, Khoshnevis Mehrnoush, Ehrsson H Henrik
Brain, Body and Self Laboratory, Department of Neuroscience, Karolinska Institutet Stockholm, Sweden.
Front Psychol. 2011 Mar 7;2:35. doi: 10.3389/fpsyg.2011.00035. eCollection 2011.
Recent advances in experimental science have made it possible to investigate the perceptual processes involved in generating a sense of owning an entire body. This is achieved by full-body ownership illusions which make use of specific patterns of visual and somatic stimuli integration. Here we investigate the fundamental question of the reference frames used in the process of attributing an entire body to the self. We quantified the strength of the body-swap illusion in conditions where the participants were observing this artificial body from the perspective of the first or third person. Consistent results from subjective reports and physiological recordings show that the first person visual perspective is critical for the induction of this full-body ownership illusion. This demonstrates that the multisensory integration processes producing the sense of corporeal self operates in an ego-centric reference frame.
实验科学的最新进展使得研究产生拥有整个身体感觉所涉及的感知过程成为可能。这是通过全身所有权错觉来实现的，该错觉利用了视觉和躯体刺激整合的特定模式。在这里，我们研究了将整个身体归属于自我的过程中所使用的参照系这一基本问题。我们在参与者从第一人称或第三人称视角观察这个人造身体的条件下，对身体互换错觉的强度进行了量化。主观报告和生理记录的一致结果表明，第一人称视觉视角对于这种全身所有权错觉的诱导至关重要。这表明产生身体自我感觉的多感官整合过程是以自我为中心的参照系中运作的。
