I though some might like to have a look at these two 2011 research papers [[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3237008/ RECENT DEVELOPMENTS IN NEUROPATHOLOGY OF AUTISM SPECTRUM DISORDERS]] and [[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3102613/ Review of neuroimaging in autism spectrum disorders: what have we learned and where we go from here]]