Clusters of Autism-Related Genes (IMAGE) Princeton University, Engineering School Caption Princeton University researchers developed a machine-learning program that scoured the human genome to identify 2,500 genes that may contribute to autism spectrum disorder. The results vastly expand on the 65 autism-risk genes currently known. In the illustration, genes possibly associated with autism are clustered into colored groups based on how they function and relate to each other in the brain. The size of an individual circle indicates how highly the gene was ranked by the machine-learning program. The clusters also provide researchers clues as to which processes in the brain might be disrupted in autism. Credit Image courtesy of Arjun Krishnan, Princeton University Usage Restrictions For non-commercial use License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.