How to Elicit Ownership and Agency for an Avatar Presented in the Third-Person Perspective: The Effect of Visuo-Motor and Tactile Feedback

Hanashima, Ryo; Ohyama, Junji

doi:10.1007/978-3-031-06509-5_9

Cited by 7 publications

(2 citation statements)

References 65 publications

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“…However, the results revealed no significant enhancement in the subjective responses to questionnaire items related to embodiment. A likely explanation for the minimal impact of haptic cues is that the high-quality visual stimuli provided by current virtual reality headsets are sufficient for achieving embodiment, a finding that aligns with [3]. The average scores for the questionnaire items without tactile stimulation were 7.86, 8.14, and 7.43 for Q1, Q2, and Q3, respectively, which are already high and approach the maximum score of 9.…”

Section: Discussionmentioning

confidence: 71%

“…Previous studies have shown inconsistent results regarding the necessity of haptic stimuli for enhancing embodiment. For instance, Hanashima and Ohyama [3] found that tactile stimuli were crucial for increasing the sense of ownership felt for an avatar in third-person perspective conditions. Slater et al [4] observed that haptic stimuli, when congruent with visual stimuli, slightly enhanced the sense of ownership for the avatar.…”

Section: Introductionmentioning

confidence: 99%

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Minimal Impact of Tangible Objects on Body Ownership Transfer in Immersive Virtual Reality

ABE,

KAWAGUCHI,

OKAMOTO

2024

ISASE

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Researchers have discussed the impact of tactile stimuli on the embodiment within virtual reality environments. We conducted experiments under conditions akin to the rubber hand illusion, where tactile stimuli are known to enhance illusory bodily awareness, within an immersive virtual reality setting. Participants were required to touch spheres that appeared randomly under two conditions: with and without tactile stimulation. The condition incorporating tactile stimuli provided cotton balls at locations that were spatially congruent with the virtual spheres. Although we anticipated that tactile stimulation would enhance embodiment, no significant differences in reported embodiment were observed between conditions with and without tactile objects. The results imply that when visual stimuli alone are sufficient to generate embodiment, tactile stimuli do not significantly affect embodiment.

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Section: Discussionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Minimal Impact of Tangible Objects on Body Ownership Transfer in Immersive Virtual Reality

ABE,

KAWAGUCHI,

OKAMOTO

2024

ISASE

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Analysis of the Impact on Immersive Experience: Narrative Effects in First and Third Person Perspectives

Liu,

Lu,

Guo

et al. 2024

Lecture Notes in Computer Science

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Influence of feedback transparency on motor imagery neurofeedback performance: the contribution of agency

Dussard,

Pillette,

Dumas

et al. 2024

J. Neural Eng.

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Objective. Neurofeedback (NF) is a cognitive training procedure based on real-time feedback (FB) of a participant’s brain activity that they must learn to self-regulate. A classical visual FB delivered in a NF task is a filling gauge reflecting a measure of brain activity. This abstract visual FB is not transparently linked—from the subject's perspective—to the task performed (e.g., motor imagery). This may decrease the sense of agency, that is, the participants’ reported control over FB. Here, we assessed the influence of FB transparency on NF performance and the role of agency in this relationship.Approach. Participants performed a NF task using motor imagery to regulate brain activity measured using electroencephalography. In separate blocks, participants experienced three different conditions designed to vary transparency: FB was presented as either 1) a swinging pendulum, 2) a clenching virtual hand, 3) a clenching virtual hand combined with a motor illusion induced by tendon vibration. We measured self-reported agency and user experience after each NF block. Main results. We found that FB transparency influences NF performance. Transparent visual FB provided by the virtual hand resulted in significantly better NF performance than the abstract FB of the pendulum. Surprisingly, adding a motor illusion to the virtual hand significantly decreased performance relative to the virtual hand alone. When introduced in incremental linear mixed effect models, self-reported agency was significantly associated with NF performance and it captured the variance related to the effect of FB transparency on NF performance. Significance. Our results highlight the relevance of transparent FB in relation to the sense of agency. This is likely an important consideration in designing FB to improve NF performance and learning outcomes.

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How to Elicit Ownership and Agency for an Avatar Presented in the Third-Person Perspective: The Effect of Visuo-Motor and Tactile Feedback

Cited by 7 publications

References 65 publications

Minimal Impact of Tangible Objects on Body Ownership Transfer in Immersive Virtual Reality

Minimal Impact of Tangible Objects on Body Ownership Transfer in Immersive Virtual Reality

Analysis of the Impact on Immersive Experience: Narrative Effects in First and Third Person Perspectives

Influence of feedback transparency on motor imagery neurofeedback performance: the contribution of agency

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