This a case control study on seasickness susceptibility. 86 healthy maritime personal were divided to seasickness susceptible and non susceptible groups based on a seasickness questionnaire (Golding) and motion sickness score.

All subjects from both groups underwent video head impulse testing (vHIT). VHIT parameters - gain, asymmetry ect were compared between both groups.

Inclusion Criteria:

• 18-40 healthy military naval subjects
• At least six month of active sailing.

Exclusion Criteria:

• A history of hearing loss
• Ear pathology observed at otoscopic examination
• A neck injury precluding head movement.
• Abnormal otoneurological examination findings
• Subject's withdrawal of informed consent.
• Failure to complete the video head impulse test.

Information will be available upon reasonable request from corresponding author