Which type of nystagmus occurs shortly after stopping spinning?

Post Rotational Nystagmus is the type of nystagmus that occurs shortly after stopping spinning. This phenomenon is a result of the vestibular system's reaction to the sudden cessation of angular motion. When a person spins, the fluid in the inner ear's semicircular canals also moves, creating a sensation of rotation. When the spinning stops, the fluid continues to move for a brief period, leading to a misalignment between the visual and vestibular input, which results in the eyes exhibiting rhythmic movements known as nystagmus.

This form of nystagmus is particularly relevant in the context of field sobriety testing as it can indicate impairment from substances, such as alcohol, that affect the central nervous system and balance. The other types of nystagmus mentioned have different causes and contexts: physiological nystagmus occurs under normal conditions as a natural response to visual stimuli, caloric nystagmus is induced by stimulating the inner ear with temperature changes, and horizontal gaze nystagmus involves a specific type of nystagmus when the eyes are moved horizontally, often assessed during sobriety tests.