Head impulse test: Physiological basis and registration methods of the vestibulo-ocular reflex
Main Article Content
Keywords
Head impulse test, vestibulo-ocular reflex, vestibular pathology
Abstract
In the history of vestibular clinical evaluation, it has always been sought the way to measure individually each of the six semicircular canals and the four otolith organs. Based on vestibular physiology, in 1988 Halmagyi and Curthoys described the Head impulse test (HIT) as a diagnostic method to evaluate the effectiveness of the vestibulo-oculomotor reflex in patients with vestibular symptoms. This review shows the physiological basis for HIT and its evolution towards nowdays video HIT (vHIT).
