Which of the following is NOT a function of the Vestibular System?

The vestibular system is primarily responsible for maintaining balance, spatial orientation, and coordinating movements, particularly in relation to head position and motion. It helps the body understand its position in space and informs reflexes that counteract movements to maintain stability.

Calculating distance is primarily a function of visual perception and other sensory inputs, rather than a direct role of the vestibular system. Visual tracking and orienting without vision are functions associated with the vestibular system, as they help maintain awareness of one's position and movement in relation to the surrounding environment. Reflex information is also part of the vestibular system’s role, as it helps control eye and head movements to stabilize vision during changes in position.

In summary, the function of calculating distance is not performed by the vestibular system, which is why that option stands out as the correct answer.