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Cinerama sickness and postural instability

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Author: Bos, J.E. · Ledegang, W.D. · Lubeck, A.J.A. · Stins, J.F.
Type:article
Date:2013
Source:Ergonomics, 9, 56, 1430-1436
Identifier: 481449
doi: doi:10.1080/00140139.2013.817614
Keywords: Biology · Balance · Cinerama sickness · Cybersickness · Postural instability · Visually induced motion sickness · Healthy Living · Human · TPI - Training & Performance Innovations · BSS - Behavioural and Societal Sciences

Abstract

Motion sickness symptoms and increased postural instability induced by motion pictures have been reported in a laboratory, but not in a real cinema. We, therefore, carried out an observational study recording sickness severity and postural instability in 19 subjects before, immediately and 45 min after watching a 1 h 3D aviation documentary in a cinema. Sickness was significantly larger right after the movie than before, and in a lesser extent still so after 45 min. The average standard deviation of the lateral centre of pressure excursions was significantly larger only right afterwards. When low-pass filtered at 0.1 Hz, lateral and for-aft excursions were both significantly larger right after the movie, while for-aft excursions then remained larger even after 45 min. Speculating on previous findings, we predict more sickness and postural instability in 3D than in 2D movies, also suggesting a possible, but yet unknown risk for work-related activities and vehicle operation. Practitioner Summary: Watching motion pictures may be sickening and posturally destabilising, but effects in a cinema are unknown. We, therefore, carried out an observational study showing that sickness then is mainly an issue during the exposure while postural instability is an issue afterwards. © 2013 Copyright Taylor and Francis Group, LLC.