Regarding the study on the spontaneously recovered child: I don't have the full text in front of me now, but I read it yesterday. The child in question seems to have recovered eye contact and some kind of social-ness. However, at age 9, he was not likely to be mainstreamed in public school, since he had only short two-word spoken phrases, and was only partially potty trained. So, the authors are not using the Lovaas definition of recovery.