This study by Schwarz and Fredrickson document the very limited
vestibular sensory projections to the cerebral neocortex, which have their primary sensory projections to the cerebellum and brain stem.
See further details of these relationships in: "Somatosensory Deprivation and Its Relationship to the Blind": at: http://www.violence.de/prescott/afb/paper.pdf
These neurophysiological data support the primacy of cerebellar and subcortical brain structures in the mediation of the pathological
behaviors consequent to mother-infant separation (movement sensory deprivation) rather than mediation by neocortical/cognitive
structures of the brain, which has implications for both prevention and treatment programs.