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Motion sickness is a term that is commonly used to describe the ill effects of many provocative motion (e.g. seagoing or air travel) and apparent motion (e.g. IMAX movies and virtual reality) environments on human well-being and performance. It can be extremely debilitating and yet we do not have a precise understanding of its cause. This study evaluates(More)
BACKGROUND Two current theories concerning the etiology of motion sickness (MS)-the eye movement hypothesis and sensory conflict theory-were evaluated under conditions that manipulated the degree of optokinetic nystagmus (OKN) and/or vection. METHOD Eye movement and perceptual responses were elicited with whole field stimulation in a vertically striped(More)
OBJECTIVE We evaluated the nauseogenic properties of commercial console video games (i.e., games that are sold to the public) when presented through a head-mounted display. BACKGROUND Anecdotal reports suggest that motion sickness may occur among players of contemporary commercial console video games. METHODS Participants played standard console video(More)
OBJECTIVE We tested the hypotheses that (a) participants might develop motion sickness while playing "off-the-shelf" console video games and (b) postural motion would differ between sick and well participants, prior to the onset of motion sickness. BACKGROUND There have been many anecdotal reports of motion sickness among people who play console video(More)
OBJECTIVE We examined motion sickness in an oscillating virtual environment presented via a video projector system. BACKGROUND Visible oscillation of the physical environment is known to induce both postural instability and motion sickness, but it cannot be assumed that the same phenomena will occur in a virtual simulation of such motion. METHOD(More)
BACKGROUND Women report a history of motion sickness (MS) about twice as frequently as men, but the results of experimental studies are equivocal. In the present investigation, we sought to replicate previous findings that women report a greater history of MS than men when interrogated with MS history questionnaires. We examined the hypothesis that those(More)
BACKGROUND It is apparent that visual information is used in maintaining stable posture and ambulating throughout the stationary world. Considerable previous research has indicated that significant perturbations of posture can be induced with a shift in the entire visual scene. In motion environments, it is assumed that posture and ambulatory ability are(More)
The observation that physically present visual stimuli can sometimes disappear from consciousness has intrigued vision scientists for centuries. Two situations are known to cause such disappearance: stationary peripheral images and images (centrally or peripherally viewed) masked by abrupt contrast increments of stimuli in adjacent retinal areas. Both of(More)
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