1.) First identified by Hans Asperger in 1944 and introduced to the United States through the DSM-IV in 1994.
2.) Characterized by repetitive interests, activities, and thoughts, along with an impairment in social situations.
3.) There are no developmental delays in language or speech.
4.) Causes of Asperger's syndrome are still being determined.
5.) Can be misdiagnosed in individuals with personality disorders, schizophrenia, social anxiety, intellectual/learning disabilities, and other developmental disorders.
Autism Spectrum Disorder (ASD):
1.) First identified by Leo Kanner in 1943.
2.) Characterized by significant developmental delays in language and social skill acquisition.
3.) Can be diagnosed as in children as young as 2-3 years old.
4.) Must meet specific criteria to be diagnosed.
Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS):
1.) Also characterized by significant developmental delays in language and social skill acquisition.
2.) Usually someone receives this diagnosis because they almost meet the criteria for ASD.