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[Pattern of Body Sway While Viewing 3D Video Clips in Various Age Groups]
Rentaro Ono1, Yasuyuki Matsuura2, Masaru Miyao3
1Department of Human and Artificial Intelligent Systems, Graduate School of Engineering, University of Fukui.
Nihon Eiseigaku Zasshi. Japanese Journal of Hygiene
|March 22, 2022
Summary
Visually induced motion sickness (VIMS) increases body sway, especially when 3D video motion is inconsistent with viewpoint. Elderly individuals show less VIMS, possibly due to age-related visual function decline.
Area of Science:
- Neuroscience
- Human Factors Engineering
- Ophthalmology
Background:
- Advancements in 3D video technology increase exposure to visual stimuli.
- Visually induced motion sickness (VIMS) is a common adverse effect of viewing 3D content.
- The precise mechanisms and age-related differences in VIMS remain unclear.
Purpose of the Study:
- To investigate age-related differences in body sway patterns during 3D video viewing.
- To determine if visual-motor consistency influences VIMS severity across age groups.
Main Methods:
- 116 participants (aged 15-89) viewed 3D videos with consistent (VC-I) and inconsistent (VC-II) motion.
- Body sway was measured using statokinesigrams (SKGs) with eyes open and closed.
- Sway amounts were calculated from SKG data.
Main Results:
- All age groups exhibited significantly increased sway with inconsistent 3D video motion (VC-II) compared to baseline.
- Elderly participants showed no significant sway difference between consistent 3D video viewing (VC-I) and baseline.
- VIMS appears less prevalent or severe in the elderly group.
Conclusions:
- Age-related decline in visual functions (e.g., acuity, accommodation) may mitigate VIMS in the elderly.
- Visual-motor consistency plays a role in VIMS, but its impact is modulated by age.
- Further research is needed to fully understand VIMS pathophysiology and age-dependent susceptibility.
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