Coriolis effect (perception)

[1][2][3] This effect comes about as the head is moved in contrary or similar motion with the body during the time of a spin.

This causes a sense of dizziness or nausea before equilibrium is restored after the head returns to a stabilized state.

The physiological mechanism by which the effect occurs is all contained within the semicircular canals, as determined by head tilt.

When rotating and tilting a person's head, the endolymphatic fluid within the canal may be subjected to the Coriolis force.

When interrupted by a head movement, the fluid will move at an angle, affecting the cupula, which will cause a perceived rotation that is not occurring.

[13] The Coriolis effect is a concern for pilots and astronauts, where it can cause extreme disorientation.