Gerald Fischbach - It is not all that common, but there is a phenomenon where autism could get

It is not all that common, but there is a phenomenon where autism could get worse at about age two. There are some controversies whether regression is a prominent part of autism, but many people feel that it's very hard to diagnose autism before you can begin really talking in detail with a child.

- Gerald Fischbach

source: "Big Think Panel Discussion on Autism". Interview with Susan Wilczynski, bigthink.com.