Seasickness or Mal de Mer is a very unpleasant experience, and most sailors, if all, had to cope with it. In its extreme form it leaves the victim unwilling to perform any task, even to assist in his or her own rescue. Motion sickness or cinetose is dependent on the magnitude of ship motion, but how it affects human operator is not unequivocal. We will review the different factors, environmenta...

Three-dimensional (3D) television sets are already on the market and are becoming increasingly popular among consumers. Watching stereoscopic 3D movies, though, can produce certain adverse affects such as asthenopia and motion sickness. Visually induced motion sickness (VIMS) is considered to be caused by an increase in visual-vestibular sensory conflict while viewing stereoscopic images. VIMS ...

BACKGROUND Intrafractional motion can be a substantial uncertainty in precision radiotherapy. Conventionally, the target volume is expanded to account for the motion. Couch-tracking is an alternative, where the patient is moved to compensate for the tumor motion. However, the couch motion may influence the patient's stress and respiration behavior decreasing the couch-tracking effectiveness. ...

Immersion in a Virtual Environment (VE) is known to produce symptoms similar to those of motion sickness, termed ‘Virtual Simulation Sickness’ (VSS), and there is evidence that people adapt or, more accurately, habituate to the effects. We aimed to quantify this habituation by immersing 70 people on ten occasions each. Ten subjects were exposed every day, ten more every 2, 3, 4, 5, 6 and 7 days...

Background: Viewers reported different vection (an illusion of selfmotion) when watching scenes oscillating at similar velocities but at different frequencies and amplitudes. Hypothesis: It was hypothesized that different levels of VIMS would be reported after watching scenes oscillating at similar velocity but with different frequencies. Method: Ten participants were exposed to a checker board...

Maintaining postural equilibrium, sensing movement, and maintaining an awareness of the relative location of our body parts requires the precise integration of several of the body's sensory and response systems including visual, vestibular, somatosensory (touch, pressure, and stretch receptors in our skin, muscles, and joints), and auditory. Vestibular system plays important part in maintaining...

For at least four decades, there have been reports in scientific literature of people experiencing motion sickness-like symptoms attributed to low-frequency sound and infrasound. In the last several years, there have been an increasing number of such reports with respect to wind turbines; this corresponds to wind turbines becoming more prevalent. A study in Shirley, WI, has led to interesting f...