What describes a rare subset of individuals with lower-functioning autism that experience persistent non-verbal behavior?

What describes a rare subset of individuals with lower-functioning autism that experience persistent non-verbal behavior?

• A. Severe mutism
• B. Pervasive mutism
• C. Selective mutism
• D. Autistic disorder

Answer: (B)

The correct answer describes a condition where individuals exhibit persistent non-verbal behavior within a population that has lower-functioning autism. Pervasive mutism refers specifically to a consistent inability or refusal to speak in certain social situations, which can be particularly evident in individuals with lower-functioning autism. This condition is characterized by the absence of verbal communication across a variety of contexts, which aligns with the concept of "persistent non-verbal behavior." Severe mutism and selective mutism refer to different communication challenges. Severe mutism often indicates a significant inability to speak at all, which differs from the broader concept of pervasive mutism involving selective non-verbal behavior in specific social contexts. Autistic disorder encompasses a range of symptoms and behaviors associated with autism but does not specifically focus on the non-verbal aspects, making it a more general term rather than a precise description of individuals with persistent non-verbal behavior.

The correct answer describes a condition where individuals exhibit persistent non-verbal behavior within a population that has lower-functioning autism. Pervasive mutism refers specifically to a consistent inability or refusal to speak in certain social situations, which can be particularly evident in individuals with lower-functioning autism. This condition is characterized by the absence of verbal communication across a variety of contexts, which aligns with the concept of "persistent non-verbal behavior."

Severe mutism and selective mutism refer to different communication challenges. Severe mutism often indicates a significant inability to speak at all, which differs from the broader concept of pervasive mutism involving selective non-verbal behavior in specific social contexts. Autistic disorder encompasses a range of symptoms and behaviors associated with autism but does not specifically focus on the non-verbal aspects, making it a more general term rather than a precise description of individuals with persistent non-verbal behavior.