OBJECTIVE The aim of this study was to explore the frequency response of visually induced motion sickness (VIMS) for oscillating linear motion in the fore-and-aft axis. BACKGROUND Simulators, virtual environments, and commercially available video games that create an illusion of self-motion are often reported to induce the symptoms seen in response to true motion. Often this human response ca...

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A longitudinal study on the effects of age on the susceptibility to motion sickness in the squirrel monkey was carried out over a 10-year period (1982 to 1991). The typical life span of squirrel monkeys is 15 years. Ten mature male squirrel monkeys of the Bolivian subspecies were found to be susceptible to motion sickness induced by a combination of vertical oscillation at 0.5 Hz and rotation i...

The nausea-related Electroencephalogram (EEG) dynamics corresponding to motion sickness inclining tasks is studied in this thesis with the virtual-reality based dynamic driving environment. The VR-based dynamic driving environment provides the advantages of safety, low cost, and the realistic stimuli to the subjects. The Motion Sickness Questionnaire (MSQ) is designed and the physiological resp...

It is known that car drivers tilt their head toward the center of a curve. In addition, drivers are generally less susceptible to carsickness than are the passengers. This paper uses a mathematical model to investigate the effect of the head-tilt strategy on motion sickness. It is shown that tilting the head in the centripetal direction reduces the estimated motion sickness incidence (MSI), def...

Head movements made while the whole body is rotating at unusually high angular velocities (here with supine body position about an earth-vertical axis) result in inappropriate eye movements, sensory illusions, disorientation, and frequently motion sickness. We investigated the acquisition and retention of sensory adaptation to cross-coupled components of the vestibulo-ocular reflex (VOR) by ask...

PURPOSE Intramuscular (i.m.) injections of promethazine in 25 mg or 50 mg dosages are commonly used to treat space motion sickness in astronauts. The present study examined the effects of i.m. injections of promethazine on performance, mood states, and motion sickness in humans. METHODS Subjects were 12 men, mean age 36 + 3.1, who participated in 1 training day and 3 treatment conditions: a 2...

Simulator Sickness (SS) is a form of Motion Sickness (MS) that does not require true motion – but does require a wide field of view (FOV) visual display [5, 46, 64]. Like all varieties of MS, an intact vestibular system is necessary to experience SS [12]. It has been called visually induced motion sickness [3, 52, 48] and Cinerama sickness [3, 5, 52]. The term “vection” is used to describe a vi...