Browsing by Author "Stoffregen, Thomas A"

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    The Center of Pressure Data from "The Rim and Ancient Mariner: The Nautical Horizon Affects Postural Sway in Older Adults"
    (2016-11-24) Munafo, Justin G; Wade, Michael G; Stoffregen, Thomas A; Stergiou, Nicholas; tas@umn.edu; Stoffregen, Thomas A; University of Minnesota Department of Kinesiology, Affordance Perception-Action Laboratory
    This dataset contains the raw center of pressure data collected on the Enrichment Voyage (www.semesteratsea.org) on an AMTI (Advanced Mechanical Technology, Inc.) force plate. The data was collected across two days from 18 participants. There were two conditions (the near condition and the far condition) split evenly across six trials in a randomized order. In the trials of the near condition, participants stood on the force plate with their hands comfortably on their sides with their shoes on. They maintained their gaze on a tripod located 50 cm from their heel for the duration of the trial. In the trials of the far condition, everything remains the same, except that the tripod was removed, and participants were instructed to look at the horizon. Trials were 60 seconds long.
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    Data from "Effects of decades of physical driving on body movement and motion sickness during virtual driving"
    (2017-10-24) Stoffregen, Thomas A; Chang, Chih-Hui; Chen, Fu-Chen; Zeng, Wei-Jhong; tas@umn.edu; Stoffregen, Thomas A
    We investigated relations between experience driving physical automobiles and motion sickness during the driving of virtual automobiles. Middle-aged individuals drove a virtual automobile in a driving video game. Drivers were individuals who had possessed a driver’s license for approximately 30 years, and who drove regularly, while non-drivers were individuals who had never held a driver’s license, or who had not driven for more than 15 years. During virtual driving, we monitored movement of the head and torso. During virtual driving, drivers became motion sick more rapidly than non-drivers, but the incidence and severity of motion sickness did not differ as a function of driving experience. Patterns of movement during virtual driving differed as a function of driving experience. Separately, movement differed between participants who later became motion sick and those who did not. Most importantly, physical driving experience influenced patterns of postural activity that preceded motion sickness during virtual driving. The results are consistent with the postural instability theory of motion sickness, and help to illuminate relations between the control of physical and virtual vehicles.