Ok, I'm not really concerned, but curious. My son with Pervasive Developmental Disorder (PDD)-not otherwise specified, who used to be so quiet at school, has become a nonstop talker. He blabs constantly and usually it's about his videogame obsessions or when he's getting his Wii (Ninetendo Wii, which he's getting for his birthday in August), but at least he has conversations with other kids. The summer school teacher (who has been his Special Education teacher for three years) says he's very social at school, engages kids in board games, etc. He is never inappropriate in public. Then there's at home...lol. Daughter and I laugh affectionately because he talks nonstop even while alone. He talks back to his games "Oh, good. Mario, stop it. Don't die!" and talks back to the shows he's watching on televison. He also talks to himself this way: He found my daughter's Heelies outside and I heard him saying, "I can't believe she left her Heelies out here. I think I'll take them in." Nobody is there to hear him...lol. I'm 100% positive he's not psychotic, but I do understand how this behavior got him a bipolar diagnosis once, however he has no moodswings and seems to be a very content kid. Is this nonstop talking, even while alone, part of the spectrum? Son is very articulate and tends to use big words. The funny thing is, he had a speech delay and barely spoke at all before age four and a half. Until then, he'd just echo. In a way, he still does. Sometimes I hear him reciting, verbatim, the shows on television that he watches. Obviously they are reruns that he has memorized. Lucas is very careful not to talk to himself when anyone is around. He seems aware that it's not appropriate behavior, but he does it at home in his room. Any comments? Any other Autism Spectrum Disorders (ASD) kids do this? Lucas is such a neat kid, very compassionate and sweet, but he's QUIRKY up the ole wazoo!