Browsing by Subject "virtual"

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    Comparing Interface Affordances for Controlling a Push Broom in VR
    (2018-07) Miller, Noah
    This thesis explores how VR controller interfaces affect how participants hold a virtual push broom in VR. We aim to understand how the affordances provided by current VR controllers and a custom broom VR controller impact user hand grip in a visual VR broom task. We compare hand grip in two VR conditions against hand placement of a real push broom without VR. The goal is to understand the roles that interaction interfaces have on recreating physically accurate actions in VR training scenarios. The results from this study show an effect of the broom controller condition but also that the presentation order and subject demographics may have affected the way subjects held the VR and real push brooms.
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    Control of a virtual vehicle influences postural activity and motion sickness
    (2011-05-06) Dong, Xiao; Yoshida, Ken; Stoffregen, Thomas
    Everyday experience suggests that drivers are less susceptible to motion sickness than passengers. In the context of inertial motion (i.e., physical displacement), this effect has been confirmed in laboratory research using whole body motion devices. We asked whether a similar effect would occur in the context of simulated vehicles in a visual virtual environment. We used a yoked control design in which one member of each pair of participants played a driving video game (i.e., drove a virtual automobile). A recording of that performance was viewed (in a separate session) by the other member of the pair. Thus, the two members of each pair were exposed to identical visual motion stimuli but the risk of behavioral contagion was minimized. Participants who drove the virtual vehicle (drivers) were less likely to report motion sickness than participants who viewed game recordings (passengers). Data on head and torso movement revealed that drivers tended to move more than passengers, and that the movements of drivers were more predictable than the movements of passengers. Prior to the onset of subjective symptoms of motion sickness movement differed between participants who (later) reported motion sickness and those who did not, consistent with a prediction of the postural instability theory of motion sickness. The results confirm that control is an important factor in the etiology of motion sickness, and extend this finding to the control of non-inertial virtual vehicles.