This little girl is just two years old but...ohmygosh! Ok...I have known this child since she was born so I can give you pretty much a complete history. I also know both parents fairly well. Pregnancy went fairly well with routine ob care. Mother did smoke pot during first trimester before she knew she was pregnant but quit when she found out. Father is a avid pot smoker who I believe abuses pot to cover a mood disorder. This little girl is the youngest of 5....but is the only child living in the home. She is also the only girl. The 4 boys...the oldest born to fathers first girlfriend, and then the next three born to his first wife, all have various diagnosis's most common being ADHD. The oldest is ADHD and ODD. I believe at least two of the other boys have ADHD alone at this time. There may be some learning disorders thrown in the mix that I am unaware of. I believe there is some substance abuse issues in the fathers family...in the mothers family there is at the least alcoholism. Ok...about this baby. She did her basic physical milestones on time. She turned over, crawled and walked at appropriate times. What was odd was her lack of eye contact and facial expressions. She wasnt a smiley and giggly baby. I noticed that from the beginning and kept worrying about it. She didnt coo at you. She was too content to lay there and watch tv or watch the toys. She was too content with her schedule. She was basically just tooooo content. She didnt interact. Fast forward to when a baby should be starting to make sounds like ma ma ma and da da da and ba ba ba...it didnt happen. It still didnt happen up to her 18 month check up. The child was mute except for screams and screeches. Finally around 3 weeks ago she has started some babbling but it isnt in anyway trying to imitate english. She is also very defiant. If her parents tell her no, she will stare at them and do it anyway. Its a very deliberate action. We sat there and watched while she was told very clearly not to touch the box and she looked right up and them and reached out and touched the box. She got her hand popped. She was moved, given a toy to distract her...she went right back to the box and touched it again. Her parents are exasperated. What does this sound like to you? Im leaning towards Pervasive Developmental Disorder (PDD).