Which example best illustrates isolation as a defense mechanism in obsessive-compulsive personality disorder?

• A. Staying in the house for days or weeks to clean
• B. Declining invites by friends or family to attend social gatherings
• C. Describing information with very little affect variation
• D. Being an introvert in the work setting to prevent talking with coworkers

Answer: (C)

Isolation of affect is a defense that lets a person separate emotional response from the idea or event, so they can discuss it in a calm, factual way without letting feelings intrude. In obsessive-compulsive personality features, this helps maintain control and reduce emotional upheaval by keeping feelings out of the description of experiences.

The statement about describing information with very little affect variation best demonstrates this. It shows the person recounting events or facts in a flat, emotionless manner, indicating emotional detachment from what’s being described. That detached presentation is the hallmark of isolation of affect.

Staying in the house to clean reflects ritualistic or compulsive behavior, not a defense mechanism. Declining social invitations signals social withdrawal, which isn’t specifically isolation of affect. Being an introvert at work describes a personality style or preference for less social interaction, rather than a defense that dissociates emotion from content.