Which spatial disorientation illusion occurs during quick head movements?

The Coriolis Effect is a spatial disorientation illusion that can occur during quick head movements, particularly when a pilot experiences rapid changes in their head position while in a coordinated turn. This phenomenon arises when the fluid in the inner ear's semi-circular canals continues to move even after the head has stopped, leading to an incorrect perception of the aircraft's position or motion.

When a pilot quickly turns their head during flight, they may feel as though they are turning or rolling in a different direction than what the aircraft is actually doing. This can create confusion and misinterpretation of the plane's orientation, which is particularly dangerous if the pilot relies solely on their inner ear for spatial awareness instead of using visual references or instruments.

Understanding the Coriolis Effect is crucial for pilots, as it emphasizes the importance of instrument training and the need to maintain awareness of the aircraft's attitude with reliable references, especially in conditions where visual cues may be misleading or absent.