What is the primary principle of exposure therapy and when is it indicated?

• A. Avoidance strategies are the core principle.
• B. Exposure therapy uses rapid flooding without planning.
• C. Facing feared stimuli gradually to habituate; indicated for anxiety disorders and OCD.
• D. Exposure therapy is ineffective for OCD.

Answer: (C)

Facing feared stimuli gradually to habituate through a structured exposure plan is the central idea of exposure therapy. The goal is to bring the person into contact with feared situations, thoughts, or sensations in a controlled way and at a level of distress that is tolerable, so that anxiety eventually decreases with repeated exposure. This happens because the fear response diminishes over time (habituation) and the person learns that the feared outcome is unlikely or not as dangerous as imagined (extinction). By practicing this approach regularly, avoidance and safety behaviors decrease, and real-life situations become less distressing.

Exposure therapy can take several forms, including real-life (in vivo), imaginal, or interoceptive exposures, and often uses a graded hierarchy that starts with less frightening items and progresses to more challenging ones. In OCD, a closely related method called exposure with response prevention has the person confront the trigger without performing the compulsive behavior, allowing anxiety to decline without the usual ritual.

This approach is indicated for anxiety disorders and OCD, among other conditions, because it directly targets the learning that maintains fear and avoidance and builds the person’s confidence in coping with distressing stimuli.