The differences between AS and PDD are both great and non-exsitant. It all comes down to a little book called the DSM-IV (Diagnostic and Statistical Manual of Mental Disorders-4th revision) AKA: The Psycho-Bible.
In the Psycho-Bible, AS (along with Autism) is listed as a Pervasive Developmental Disorder (PDD) under the heading of Information-Exchange Disorders (IED). In English that means that AS and Autism *are* PDDs, just specified ones. Someone with a dx of PDD-NOS (Not Otherwise Specified) is someone who has enough diagnostical traits to be placed on the Autism Spectrum but thier individual profile does not match a specified catagory.
Simply put, PDD-NOS is the 'catch-all' dx that allows people to maintain their mental health records and get services they may need. There are many flaws with this system of dxing, but at the moment it's what we have to work with.
In the Psycho-Bible, AS (along with Autism) is listed as a Pervasive Developmental Disorder (PDD) under the heading of Information-Exchange Disorders (IED). In English that means that AS and Autism *are* PDDs, just specified ones. Someone with a dx of PDD-NOS (Not Otherwise Specified) is someone who has enough diagnostical traits to be placed on the Autism Spectrum but thier individual profile does not match a specified catagory.
Simply put, PDD-NOS is the 'catch-all' dx that allows people to maintain their mental health records and get services they may need. There are many flaws with this system of dxing, but at the moment it's what we have to work with.
Peace,
Candes
Candes
his language skills are significantly delayed, and he literally recites video scripts
he has no special obsessions with particular topics (no "little prof" syndrome)
he doesn't have a lot of trouble expressing or understanding body language
his academic skills are exactly on grade level (no special aptitudes or difficulties)
I have a great book called the Parent's Guide to Aspergers and HFA (can't remember author!), but it describes similarities and differences in detail.
BUT (important but) there's really very little difference in treatment. So... unless it's just for your own interest, it kinda doesn't really matter!
Best,
Lisa