The direction of the postural response to a vestibular perturbation is mediated by the cerebellar vermis

When an electrical stimulus is applied to perturb the vestibular system, a postural response is generated orthogonal to head orientation. It has previously been shown that there is a convergence of neck proprioceptive and vestibular input within the cerebellum to provide a head-on-body reference frame (Manzoni et al. in Neuroscience 93:1095–1107, 1999). The objective of this experiment was to determine whether the direction of the postural …