Measuring circular vection speed in a virtual reality headset

Kirollos, Ramy; Herdman, Chris M.

doi:10.1016/j.displa.2021.102049

Cited by 6 publications

(3 citation statements)

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“…The knob indexes speed, direction and duration of vection. This method to index circular vection was presented and validated in Kirollos and Herdman's study on visual circular vection speed measurement ( Kirollos & Herdman, 2021 ). In Experiment 1 (E1), vestibular circular vection was produced with air caloric vestibular stimulation twice in the left ear and twice in the right ear.…”

Section: Present Studymentioning

confidence: 99%

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Caloric vestibular stimulation induces vestibular circular vection even with a conflicting visual display presented in a virtual reality headset

Kirollos

Herdman

2023

i-Perception

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This study explored visual-vestibular sensory integration when the vestibular system receives self-motion information using caloric irrigation. The objectives of this study were to (1) determine if measurable vestibular circular vection can be induced in healthy participants using caloric vestibular stimulation and (2) determine if a conflicting visual display could impact vestibular vection. In Experiment 1 (E1), participants had their eyes closed. Air caloric vestibular stimulation cooled the endolymph fluid of the horizontal semi-circular canal inducing vestibular circular vection. Participants reported vestibular circular vection with a potentiometer knob that measured circular vection direction, speed, and duration. In Experiment 2 (E2), participants viewed a stationary display in a virtual reality headset that did not signal self-motion while receiving caloric vestibular stimulation. This produced a visual-vestibular conflict. Participants indicated clockwise vection in the left ear and counter-clockwise vection in right ear in a significant proportion of trials in E1 and E2. Vection was significantly slower and shorter in E2 compared to E1. E2 results demonstrated that during visual-vestibular conflict, visual and vestibular cues are used to determine self-motion rather than one system overriding the other. These results are consistent with optimal cue integration hypothesis.

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Section: Present Studymentioning

confidence: 99%

“…Control Knob. The Spintrak rotary knob in Figure 2 was used to index speed, direction and duration of circular vection (Kirollos & Herdman, 2021). The circular knob had a 4.4 cm diameter and could be turned CW or CCW indefinitely.…”

Section: Apparatus and Measuresmentioning

confidence: 99%

Caloric vestibular stimulation induces vestibular circular vection even with a conflicting visual display presented in a virtual reality headset

Kirollos

Herdman

2023

i-Perception

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“…Scrutinizing vection and VIMS is especially important for studies utilizing Virtual Reality (VR) technology; vection can be elicited by presenting visual cues via Head-Mounted Displays (HMDs, e.g., see INFLUENCE CYBERSICKNESS ON RELATIONSHIP VECTION AND PRESENCE 4 [16]). However, using HMDs there is a risk participants might experience VIMS in the form of Cybersickness (CS) [17].…”

Section: Introductionmentioning

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

Kooijman

Asadi

Mohamed

et al. 2022

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

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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.

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