<unk>  occurs in the setting of passive<unk>  or with a visual stimulus, which is perceived as actual movement (virtual reality).
It is possible to induce<unk>  in nearly all adults with enough provocation.
Individuals are more susceptible to<unk> , depending on the risk factors below.
Patient Factors
Women
Ages 2-12 years old (peaks at 12 yo)
Hormonal: Pregnant, menstruating, oral contraceptives
Other sensory Illness: Altered visual or vestibular sensory cues (labrynthitis)
Migraine disorder
Psychosocial
Environmental Factors
Type of<unk> : The greater the magnitude of low frequency horizontal or vertical<unk>  the greater the<unk> 
Body position: Supine position alleviates<unk> 
Women
Ages 2-12 years old (peaks at 12 yo)
Hormonal: Pregnant, menstruating, oral contraceptives
Other sensory Illness: Altered visual or vestibular sensory cues (labrynthitis)
Migraine disorder
Psychosocial
Type of<unk> : The greater the magnitude of low frequency horizontal or vertical<unk>  the greater the<unk> 
Body position: Supine position alleviates<unk>
Motion sickness
Benign paroxysmal positional vertigo
Decompression sickness
Meniere Disease
Allergic rhinitis
Vestibular neuritis
Chronic mountain sickness
Labyrinthitis