Seasickness Simulator to Assess Anti-Motion Sickness Devices

Area of Science:

• Aerospace Medicine
• Human Physiology
• Naval Health

Background:

• Existing laboratory motion sickness (MS) simulators often fail to replicate real-world conditions.
• There is a need for a cost-effective, easily deployable simulator that rapidly induces MS symptoms.

Purpose of the Study:

• To design and validate a seasickness simulator that closely mimics ecological conditions.
• To assess if the simulator can accurately reflect individual susceptibility to MS.
• To evaluate the simulator's utility in testing anti-motion sickness interventions.

Main Methods:

• A seasickness simulator was developed for rapid MS symptom induction.
• Sixty-five subjects with diverse MS susceptibility (assessed via questionnaire) participated.
• Subjective (Visual Analog Scale, time to onset) and physiological (heart rate, temperature) data were collected.

Main Results:

• The simulator induced MS symptoms across the full spectrum of subject susceptibility.
• Average time to first MS symptom onset was 7.41 ± 2.56 minutes.
• Time to symptom onset, symptom intensity, and heart rate significantly correlated with real-world MS susceptibility.

Conclusions:

• The developed seasickness simulator effectively replicates real-life MS susceptibility.
• This validated tool can accelerate research into anti-motion sickness devices, techniques, and pharmaceuticals.
• The simulator provides a reliable platform for assessing individual responses to motion stimuli.