All of the following are classified under Pervasive Developmental Disorders except?
**Core Concept**
Pervasive Developmental Disorders (PDDs) is a term previously used to describe a group of neurodevelopmental disorders characterized by impairments in social interaction, verbal and nonverbal communication, and repetitive behaviors. These disorders are now classified under Autism Spectrum Disorder (ASD) in the DSM-5.
**Why the Correct Answer is Right**
The correct answer will be an option that is not classified under PDDs or ASD. The other options will be disorders that were previously classified under PDDs but are now included in the ASD category.
**Why Each Wrong Option is Incorrect**
**Option A:** Autism Spectrum Disorder (ASD) - This is the correct category for all PDDs, so it cannot be the correct answer.
**Option B:** Rett Syndrome - This is a genetic disorder that affects brain development and is characterized by intellectual disability, loss of motor skills, and speech problems. It is now classified under ASD.
**Option C:** Childhood Disintegrative Disorder - This is a rare condition in which children develop normally until around the age of 2-4, and then experience a loss of previously acquired skills and abilities. It is now classified under ASD.
**Option D:** Specific Learning Disorder - This is a neurodevelopmental disorder that affects learning and academic skills, such as reading, writing, and mathematics. It is not classified under PDDs or ASD.
**Clinical Pearl / High-Yield Fact**
It's essential to note that the term "Pervasive Developmental Disorders" is no longer used in the DSM-5, and all these disorders are now classified under Autism Spectrum Disorder (ASD).
**Correct Answer: D. Specific Learning Disorder**