In which subtype of autism is the ability to maintain good vocabulary often noted?

• A. Autistic Disorder
• B. Pervasive Developmental Disorder not Otherwise Specified
• C. Asperger Disorder
• D. Childhood Disintegrative Disorder

Answer: (C)

Asperger Disorder is recognized for individuals who typically demonstrate a good command of vocabulary and often have strong language skills. Unlike other subtypes of autism where language development may be delayed or atypical, individuals with Asperger Disorder usually develop language at a normal age and can articulate themselves quite well. They may exhibit a wealth of vocabulary and often engage in detailed conversations about topics of interest. Their social communication skills may still be atypical or impaired, but their grasp of language is typically an asset.

In contrast, Autistic Disorder may involve significant language delays or deficits, while Pervasive Developmental Disorder not Otherwise Specified encompasses a range of symptoms that may not specifically highlight vocabulary strength. Childhood Disintegrative Disorder is characterized by significant regression in language and social skills following a period of normal development, further distinguishing it from the language capabilities often seen in Asperger Disorder.