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Differential effects of head-mounted displays on visual performance

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Head-mounted displays (HMDs) virtually augment the visual world to aid visual task completion. Three types of HMDs were compared [look around (LA); optical see-through with organic light emitting diodes and virtual retinal display] to determine whether LA, leaving the observer functionally monocular, is inferior. Response times and error rates were determined for a combined visual search and Go-NoGo task. The costs of switching between displays were assessed separately. Finally, HMD effects on basic visual functions were quantified. Effects of HMDs on visual search and Go-NoGo task were small, but for LA display-switching costs for the Go-NoGo-task the effects were pronounced. Basic visual functions were most affected for LA (reduced visual acuity and visual field sensitivity, inaccurate vergence movements and absent stereo-vision). LA involved comparatively high switching costs for the Go-NoGo task, which might indicate reduced processing of external control cues. Reduced basic visual functions are a likely cause of this effect.
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Keywords: consumer ergonomics; human factors integration; risk assessment and management; user needs analysis; vision and lighting

Document Type: Research Article

Affiliations: 1: Department of Training and Health, Institute of Sport Science, Otto-von-Guericke-University Magdeburg, Brandenburger Str. 9, 39016,Magdeburg, Germany 2: Universit├Ąts-Augenklinik, Leipziger Str. 44, 39120,Magdeburg, Germany

Publication date: January 2, 2014

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