The Shepard–Risset Glissando: Identifying the Origins of Metaphorical Auditory Vection and Motion Sickness

2022 15th International Conference on Human System Interaction (HSI)

Mohamed

et al. 2022

In the absence of physical motion, people sometimes experience the illusory sensation of self-motion which is known as vection. Vection and presence are positively related and vection research could contribute to the improvement of the fidelity of motion simulators. However, when utilizing Virtual Reality technology for motion simulators, visually-induced motion sickness (VIMS) in the form of Cybersickness (CS) sometimes co-occurs when one experiences vection. However, the relationship between vection and CS is not evident as, to the best of our knowledge, past research mainly investigated the relationship between the vection and CS with environments with a certain level of ecological relevance. Herein we aimed to investigate whether CS negatively affects the relationship between vection and presence across different virtual environments with varying levels of ecological relevance. We immersed twenty-nine participants visually and audibly in virtual environments and after each trial, participants reported their vection intensity, CS and presence. Our results showed that the relationship between vection intensity and presence was unaffected by CS. We conclude that the relationship between vection and presence is unaffected by CS with low levels of discomfort.

Section: Designmentioning

confidence: 99%

A Virtual Reality Study Investigating the Effect of Cybersickness on the Relationship Between Vection and Presence Across Environments with Varying Levels of Ecological Relevance

2022 15th International Conference on Human System Interaction (HSI)

Mohamed

et al. 2022

“…The naturalistic auditory stimulus was the sound of a departing train, whereas the abstract auditory stimulus was an ascending Shepard-Risset glissando. Previous research has shown that the Shepard-Risset glissando can induce auditory vection (Mursic et al, 2017;Mursic & Palmisano, 2020). The third IV was the secondary task participants were expected to perform.…”

Section: Designmentioning

confidence: 99%

Does the Vividness of Imagination Influence Illusory Self-Motion in Virtual Reality?

2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

Mohamed

et al. 2022

The illusory sensation of self-motion is defined as vection. Vection research can help enhance Virtual Reality applications and improve simulator fidelity as vection appears to be a desired sensation in motion simulators. The experience of vection can be modulated by cognitive factors and potentially personal traits, such as the vividness of imagination. Previous research investigating the relationship between auditory vection and kinesthetic imagery presented conflicting findings. However, the relationship between visually-induced vection and imagination has not been investigated. Herein we investigated the relationship between kinesthetic imagery and unimodal visual and bimodal visuo-auditory vection.Twenty-nine participants were visually and audibly immersed in virtual environments with varying degrees of ecological relevance wherein they reported on their vection experience. No differences were found for vection intensity and latency measures between participants with high and low kinesthetic imagery. We conclude that imagery does not appear to play a role in the experience of visually-induced vection.

“…The naturalistic auditory stimulus was the sound of a train departing. The abstract auditory stimulus was an ascending Shepard-Risset glissando as previous research on auditory vection has shown that the Shepard-Risset glissando elicits vection (Mursic et al, 2017;Mursic & Palmisano, 2020). We have obtained the Shepard-Risset audio sample from the same source as used by Mursic et al (2017).…”

Section: Designmentioning

confidence: 99%

Does A Secondary Task Inhibit Vection in Virtual Reality?

Nahavandi

2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

et al. 2022

Vection is commonly defined as the illusory sensation of self-motion. Research on vection can assist in improving the fidelity of motion simulators. Vection can be influenced through top-down factors, such as attention, but previous research on the effect of a secondary task on vection presented conflicting findings. We investigated the effect of a visual discrimination reaction time task on vection. Twenty-nine participants were visually and audibly immersed in virtual environments with different levels of ecological relevance wherein they used a joystick to continuously report on their vection experience. In contrast to previous research, our results showed no significant effect of a secondary task on vection measures nor an effect of sensory cues and environment context on secondary task performance. We conclude that vection can unaffectedly be reported on whilst performing a simple secondary task.