Measuring perceived self-location in virtual reality

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2020
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Nakul, Estelle
Orlando-Dessaints, Nicolas
Lopez, Christophe
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Scientific Reports. Springer Nature. 2020, 10, 6802. eISSN 2045-2322. Available under: doi: 10.1038/s41598-020-63643-y
Zusammenfassung

Third-person perspective full-body illusions (3PP-FBI) enable the manipulation, through multisensory stimulation, of perceived self-location. Perceived self-location is classically measured by a locomotion task. Yet, as locomotion modulates various sensory signals, we developed in immersive virtual reality a measure of self-location without locomotion. Tactile stimulation was applied on the back of twenty-five participants and displayed synchronously or asynchronously on an avatar's back seen from behind. Participants completed the locomotion task and a novel mental imagery task, in which they self-located in relation to a virtual ball approaching them. Participants self-identified with the avatar more during synchronous than asynchronous visuo-tactile stimulation in both tasks. This was accentuated for the mental imagery task, showing a larger self-relocation toward the avatar, together with higher reports of presence, bi-location and disembodiment in the synchronous condition only for the mental imagery task. In conclusion, the results suggest that avoiding multisensory updating during walking, and using a perceptual rather than a motor task, can improve measures of illusory self-location.

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150 Psychologie
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ISO 690NAKUL, Estelle, Nicolas ORLANDO-DESSAINTS, Bigna LENGGENHAGER, Christophe LOPEZ, 2020. Measuring perceived self-location in virtual reality. In: Scientific Reports. Springer Nature. 2020, 10, 6802. eISSN 2045-2322. Available under: doi: 10.1038/s41598-020-63643-y
BibTex
@article{Nakul2020Measu-56828,
  year={2020},
  doi={10.1038/s41598-020-63643-y},
  title={Measuring perceived self-location in virtual reality},
  volume={10},
  journal={Scientific Reports},
  author={Nakul, Estelle and Orlando-Dessaints, Nicolas and Lenggenhager, Bigna and Lopez, Christophe},
  note={Article Number: 6802}
}
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