Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 44 for “"motion sickness"”.
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Sex and Virtual Reality: Posture and Motion Sickness
It is well established that exposure to virtual motion environments (VME) can elicit postural instability (PI) in addition to motion sickness (MS). While research has found sex differences in motion sickness, the results of experimental studies are equivocal regarding these differences, and …
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Analysis of abdominal slow potentials during motion sickness
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1987.
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Transfer function analysis of autonomic activity during motion sickness
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
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Pre-exposure Training as a Means to Reduce Vection Induced Symptoms of Motion Sickness
… empirically examine the effect of inducing mild motion sickness as an ameliorative to a more severe motion sickness exposure. Twenty-seven participants were selected for this study based upon their susceptibility to motion sickness, that is, only people who were determined to be motion …
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Postural Time-To-Contact, Real-Time Visual Feedback Of Postural Activity, And Motion Sickness
The postural instability theory of motion sickness predicts that the subjective symptoms of motion sickness will be preceded by unstable control of posture. In previous research, it has been confirmed with measures of the spatial magnitude and temporal dynamic of postural activity. In the first …
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Relationship between astronaut head motion and space motion sickness on Spacelabs 1 and D1
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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Quantifying the Cognitive, Symptomatic and Neuroendocrine Impact of the Coriolis Illusion; A Countermeasure for Motion Sickness
… unable to accurately perceive the position and motion of their bodies, they are spatially disoriented. Spatial disorientation is often induced by aviation illusions, and its consequences include dizziness, confusion, nausea and fatigue. The present research evaluated the severity of cognitive, …
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A Systematic Investigation into Induction and Mitigation Methods of Motion Sickness in Passengers of Automated Vehicles
… Such conditions can lead to passengers becoming motion sick. Since two out of three passengers are prone to motion sickness, even mild symptoms of motion sickness can severely influence users’ experience in automated vehicles. This dissertation includes four studies to investigate the human …
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The Effects of Different Optokinetic Drum Rotation Speeds on Motion Sickness Symptoms, Cognitive Performance and Sleep Amount
<p>Symptoms of motion sickness can be disruptive to human performance. If vection-induced motion sickness symptoms, sleep amount disruptions, and worsening of cognitive performance can be measured and characterized, there are practical implications for equipment design, especially for virtual …
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A Physics-Informed, Data-Driven Framework for Spatially Resolved Motion Sickness Prediction on The SA Agulhas II
… persists in fully integrating these predicted motions with their direct implications for human occupants, particularly motion sickness. To bridge this divide, a physics-informed, data-driven framework was developed linking environmental forcing, vessel response, and human factors. This …
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The Sensitivity to Motion Sickness Induced by Aircraft and Flight Training Devices and the Role of Experience During Flight Training
<p>The incidence and severity of motion sickness, which can be incapacitating and can prevent training, is ill-established in career paths where motion or simulated motion is commonplace. To assess different aspects of this problem, each of 175 Embry-Riddle student pilots early in their training …
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Using virtual reality and kinematic measurements to assess the interplay between motion sickness, neck pain, heart variables and postural control response
Motion sickness and neck pain can affect the postural control of individuals. During motion sickness, sensory systems are disrupted and can lead to impaired postural control. However, regarding neck pain, the condition of the cervical muscles can affect how well individuals can maintain balance. …
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Airsickness treatment and prevention: Recommendations regarding antiemetics and/or acustimulation
Airsickness has been an important concern for aviation since before World War II. Airsickness is still a topic of serious discussion in the aviation community, despite recent advances in medical science, aircraft engineering and performance. Symptoms of motion sickness range from mild to …
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Artificial gravity : evaluation of adaptation to head movements during short-radius centrifugation using subjective measures
… in the magnitude of inappropriate perceived self-motion sensations and severity of motion sickness. Verbal accounts of perceived pitch, motion-sickness scores and computer animations of subjective sensations were obtained from eight subjects, during three sessions performed at the following …
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Screening and mitigation of anxiety in unique environments
… including centrifugation, fear of flying, motion sickness, and military operations. Fear of flying is the most extensively studied area, with some supportive evidence from centrifugation studies. Virtual reality exposure (VRE) is as effective as actual training flight exposure (or analog …
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Incremental adaptation to yaw head movements during 30 RPM centrifugation
… tilt, non-compensatory vertical nystagmus, and motion sickness. Past experiments in the Man Vehicle Lab have studied adaptation to yaw head movements while rotating at 23 RPM. To investigate adaptation to head movements at a higher rotation rate, 28 subjects participated in a 3-Day protocol in …
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The effect of sleep on the adaptation to the cross-coupled stimulus during artificial gravity
… by an untrained subject, often leads to motion sickness, inappropriate compensatory eye movements, and a perceived illusory tumbling sensation. Previous studies have shown that subjects can be adapted to the CCS. We investigated the effect of sleep on the rate of adaptation to the CCS …
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Artificial gravity : changing the intensity of coriolis cross-coupled stimulus with head-angle
… on time-constant, and on subjective reports (motion sickness, motion illusion and body-tilt). We found that: 1. The pattern of adaptation is different for the time constant r from that of the amplitude of the VOR: higher fractional decreases in r are found at smaller angles, but in peak- and …
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Galvanic Vestibular Stimulation Applied to Flight Training
… investigates the use of GVS as an indicator of motion sensitivity and explores the effects of GVS on flight simulation performance. Bilateral bipolar rectangular pulse electrical stimulations were given to subjects via skin-mounted electrodes placed over each mastoid process to stimulate the …
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Identification Of System Design Features That Affect Sickness In Virtual Environments
… of exposure to different VEs indicate that motion sickness-like symptoms are often produced during or after exposure to the simulated environment. These deleterious side effects have the potential to limit the utilization of VE systems if they jeopardize the health and/or safety of the user …
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