To better understand autism spectrum disorders, the UCSF Simons VIP team is recruiting healthy controls to participate in a study involving brain imaging and psychological assessments and questionnaires. The study will involve phone interviews, cognitive testing and questionnaires, genetic testing, physical exam, photographs, non-invasive brain imaging sessions (MRI and MEG). The study can take up to 17 hours to complete, and there may be up to 5 study visits to UCSF and UC Berkeley.