One PDD was described in Europe during WWII, simultaneously with Kanner's description of autism in the U.S. Also labeled autism originally, sufferers 
One PDD was described in Europe during WWII, simultaneously with Kanner's description of autism in the U.S. Also labeled autism originally, sufferers develop  normal speech with less intellectual impairment than Kanner's autism, but have severe social deficiencies and also exhibit repetitious behavior.
One PDD was described in Europe during WWII, simultaneously with Kanner's description of autism in the U.S. Also labeled autism originally, sufferers develop  normal speech with less intellectual impairment than Kanner's autism, but have severe social deficiencies and also exhibit repetitious behavior.
Asperger's syndrome