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Mental fatigue delays visual search behaviour in young cyclists when negotiating complex traffic situations : a study in virtual reality Ghent University
Introduction: Mental fatigue has been shown to negatively affect motor and sport performance. To date, however, no research focused on assessing the effects of mental fatigue on hazard perception in young cyclists who are highly vulnerable in traffic, especially after school. Therefore, the purpose of this study was to examine the influence of induced mental fatigue on hazard perception and anticipation in young cyclists using a novel Virtual ...
Visual feedback manipulation in virtual reality to influence pain-free range of motion. Are people with non-specific neck pain who are fearful of movement more susceptible? Vrije Universiteit Brussel
BACKGROUND: Movement-evoked pain may have a protective or learned component, influenced by visual cues which suggest that the person is moving towards a position that may be perceived as threatening. We investigated whether visual feedback manipulation in virtual reality (VR) had a different effect on cervical pain-free range of motion (ROM) in people with fear of movement.
METHOD: In this cross-sectional study, seventy-five people ...
What did you expect? Modelling quality of experience for virtual reality using the repertory grid technique Ghent University
Research and development of a low-cost, portable visual field testing platform using a smartphone and virtual reality headset for the early detection of glaucoma KU Leuven
Glaucoma is the leading cause of irreversible blindness worldwide, affecting about 64 million people. A large proportion of glaucoma cases worldwide are undiagnosed or sub-optimally managed. More than half of people living with the disease, in low-income countries, are unaware of the condition until it progresses to an advanced stage, resulting in visual impairment. Since adequate treatment significantly slows or halts progression of the ...
The visual information available in virtual reality University of Antwerp
Perception in virtual reality is often compared to the perception of pictures. there are, however, important differences. A virtual reality environment, unlike a picture, is interactive and immersive. these properties give rise to novel theoretical challenges. Building on James J. Gibson’s analysis of the perception of depictions, we raise three questions about perception in virtual reality, to which we offer tenta- tive answers: (1) Is virtual ...
Visual delay affects force scaling and weight perception during object lifting in virtual reality KU Leuven
Lifting an object requires precise scaling of fingertip forces based on a prediction of object weight. At object contact, a series of tactile and visual events arise that need to be rapidly processed online to fine-tune the planned motor commands for lifting the object. The brain mechanisms underlying multisensory integration serially at transient sensorimotor events, a general feature of actions requiring hand-object interactions, are not yet ...
Seeing is believing : the effect of video quality on quality of experience in virtual reality Ghent University
The omnidirectional nature of Virtual Reality (VR) content provides an immersive experience for the viewer. At the same time, VR content relies heavily on the quality of the video to deliver an immersive experience. This study investigates the effect of video quality degradation on aspects of the viewer's quality of experience (QoE) via subjective (i.e., a questionnaire) and objective (i.e., electroencephalogram) methods. We measured the ...