National Institute of Mental Health has a significant amount of information available on-line that can give
people more insight into this field and also explain about the available genetic markers and testing techniques:
http://www.nimh.nih.gov/health/publications/looking-at-my-genes-what-can-they-tell-me/index.shtml
Recent study published in the October 27 issue of Nature journal revealed new scientific evidence on brain development in-utero. According to genetic analysis, the genes suspected of causing, or being involved in causing, autism, schizophrenia and other mental illnesses are activated in the developing brain before birth.
http://www.linkedin.com/news?viewArticle=&articleID=891990072&gid=60035&type=member&item=78981845&articleURL=http%3A%2F%2Fwww%2Econsumer%2Ehealthday%2Ecom%2FArticle%2Easp%3FAID%3D658235&urlhash=S8CW&goback=%2Egde_60035_member_78981845
