monty,
Children with CDD display "normal" development until they reach a certain age and they then lose abilities that they've attained, they then appear autistic (classic autism rather than the milder forms).
Speaking of "regression", I "regressed" at the onset of puberty till now. I functioned quite well in primary school after a couple of years of settling in, from grade 9 till now I've spiraled downwards (whether it's due to the environment or not is up in the air).
Quote:
From ages six - twelve the child with autistic disorder may improve, with the disorder returning in full force in the adolescent and young adult years. This eventually calms down in the middle to later years (Wing, 1997).
This describes me quite well.