Neuroimaging findings indicate that sensorimotor regions of the brain become overconnected in autism at the expense of later-developing higher-order functions.
Amanda, J.K., Nair, A., Keown, C.L., Datko, M.C., Lincoln, A.J. & Müller, R.A. (2015). Cerebro-cerebellar resting state functional connectivity in children and adolescents with autism spectrum disorder. Biological Psychiatry. doi: 10.1016/j.biopsych.2015.03.024