Some more info from: http://scoliosisjournal.com/content/4/1/24
Originally Posted by Elisa
Studies over many years in AIS subjects have shown abnormalities of visual, vestibular, proprioceptive and postural control [67,69,70,94-96,99-104] involving the brain stem [69,95,97-99], cerebral hemispheres and corpus callosum [69,95,104,111-115], though not without controversy. Lowe et al  suggested that the pathogenesis of adolescent idiopathic scoliosis (AIS) results from a primary pathology in the hind brain causing a defect of central control, or processing in the central nervous system (CNS) that affects a normal growing spine . Neurological abnormalities with AIS have been explained by four fairly comprehensive concepts for pathogenesis:
(1) visuo-spatial perceptual impairment producing a motor control problem ;
(2) body-spatial orientation concept ;
(3) neurodevelopmental concept [105,106]; and
(4) sensory integration disorder .
Abnormal asymmetries of brain structure and function are found in AIS girls for each of cerebral hemispheres [112-115], dichotic listening , brain stem [97-99] and, in preliminary research for left thoracic AIS, on MR brain scans, reduced white matter density in the left internal capsule and corpus callosum [114,115].