defect and should be addressed by targeting the autism gene(s), and fringe theories that autism is caused by environmental factors such as vaccines. The movement is controversial in autism advocacy and research groups. A common criticism leveled against autistic activists is that the majority of them are "high-functioning" or have Asperger syndrome and do not represent the views of "low-functioning" autistic people and does not represent the wishes of autism community as a whole. With certain individuals emphasizing their desire to be treated. See also Epidemiology of autism Societal and cultural aspects of autism References Sociological and cultural aspects of autism