Feeling of unwellness caused by motion, especially during traveling and virtual reality immersion.
Rotary, vertical, and low-frequency motions > linear, horizontal, and high-frequency motions
- Sex: Women > men
- Age: Children (M/susceptible) & elderly (least susceptible) to motion sickness
- High levels of aerobic fitness (increased susceptibility due to a more reactive autonomic system)
- Preexisting medical conditions: Vertigo, vestibular pathology, Meniere’s disease, and migraines
- Hormonal: Pregnancy and menstrual cycle increase susceptibility
Sensory conflict and neural mismatch theory:
- Autonomic reactions: Nausea, vomiting, pallor, sweating, hypersalivation, and stomach awareness
- Sopite syndrome: Drowsiness, lethargy, and persistent fatigue
Diagnosed on the basis of a history of a triggering situation and exclusion of neurologic, otorhinolaryngologic, gastroenterologic, and infectious diseases and orthopaedic causes.