Is Autism Caused By Genes or the Environment?
There is not a single gene that triggers autism, but more likely dozens of genes that enhance the risk of the condition. On the other hand, researchers have found that certain environmental variables, like air pollution, may also play a small role.
Susan Wilczynski is executive director of the National Autism Center. In her role as chair of the National Standards Project, she has worked in collaboration with experts from around the country in order to establish national standards for the treatment of individuals on the autism spectrum.