This application covers the use of various pharmaceuticals that are currently approved for the mobilization of stem cells to treat autism. The invention is based on the finding that specific compounds such as G-CSF, induce stem cells to exit the bone marrow and enter the blood stream. These stem cells appear to have activity against autism, specifically they suppress various inflammatory reactions that are found in subsets of autistic patients. Additionally, in autism, patients often display a perfusion defect in various areas of the brain such as the temporal lobe. The mobilization of stem cells is used to increase the formation of new blood vessels so as to trigger increased circulation in patients that are identified.