Motion Sickness Underlying Cause
Motion sickness is caused by excessive, or repetitive, motion.
The sense of balance and equilibrium come from:
- Eyes: senses the body's position and direction of motion
- Inner ear: senses the direction of motion
- Muscle and joint receptors: senses position
- Pressure receptors: they sense which part of the body is supporting weight
The brain and spinal cord organize and interpret all of the information and attempt to create a consistent pattern for body position and movement. Motion sickness occurs because the brain cannot make sense of the signals from the rest of the body.
Continue to Motion Sickness Anatomy
- Buckey JC, Alvarenga D, Cole B, Rigas JR. Chlorpheniramine for motion sickness. J Vestib Res. 2004;14(1):53-61. 
- Golding JF, Gresty MA. Motion sickness. Curr Opin Neurol. 2005 Feb;18(1):29-34. 
- Miller KE, Muth ER. Efficacy of acupressure and acustimulation bands for the prevention of motion sickness. Aviat Space Environ Med. 2004 Mar;75(3):227-34. 
- Spinks AB, Wasiak J, Villanueva EV, Bernath V. Scopolamine for preventing and treating motion sickness. Cochrane Database Syst Rev. 2004;(3):CD002851.