Figure 1: Vestibuloocular reflex (VOR) from the labyrinth to the cortex
The VOR is a central component of the sensomotoric system responsible for spatial orientation and perception (vestibular projection in the cortex, perceptive crus of the VOR), postural regulation (vestibulospinal projection, postural crus) and gaze stability. The VOR transmits information from the semicircular canals and otolith organs via the vestibular nerve, the brain stem nuclei and vestibular projection to the nuclei of the three eye muscles (Three-neuron arc, oculomotor crus). The short conduction velocity of the VOR (approx. 20 ms) guarantees a well defined retinal image during head movements [5, 15]. (SVN; IVN; LVN; MVN: superior, inferior, lateral, medial vestibular nucleus).