Exposure and Response Prevention
Exposure and Response Prevention Therapy · Also known as: ERP, exposure therapy, EX/RP
Exposure and Response Prevention (ERP) is a behavioral intervention designed to reduce anxiety and compulsive behaviors by having clients repeatedly confront feared situations or intrusive thoughts without engaging in safety behaviors or compulsions. Developed by Edna B. Foa and colleagues in the 1980s, ERP is now considered the gold-standard treatment for obsessive-compulsive disorder (OCD) and is also highly effective for anxiety disorders, PTSD, and specific phobias.
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When to use it
ERP is the first-line behavioral treatment for OCD, generalized anxiety, social anxiety, specific phobias, and PTSD. It is particularly effective when compulsions or avoidance patterns are prominent maintenance factors. ERP requires client motivation and willingness to tolerate temporary increased anxiety; it is less suitable for individuals in acute crisis, with severe depression or suicidality, or those unable to tolerate the discomfort of exposure.
Strengths & limitations
- Robust empirical support with effect sizes among the largest in psychotherapy research
- Direct mechanism of action targeting the maintenance factors of anxiety and OCD
- Relatively brief intervention, often showing significant improvement in 12–20 sessions
- Generalizes well across different fears and contexts; client learns they can manage anxiety independently
- Effective across diverse populations including children, adolescents, and older adults
- Requires client tolerance for significant anxiety increase in short term; dropout rates higher than some other psychotherapies
- Compulsions and avoidance may be deeply ingrained, making initial exposures extremely distressing
- Efficacy reduced if safety behaviors are not fully identified and eliminated
- May be complicated by depression, substance use, or severe personality pathology requiring concurrent treatment
- Imaginal exposure less effective than in vivo exposure for some anxiety disorders
Frequently asked
Is it normal to feel more anxious when starting ERP?
Yes. Anxiety typically increases in early exposures as the client confronts feared situations. This discomfort is expected and signals that emotional processing is occurring. Anxiety naturally decreases with repeated, sustained exposures.
What is the difference between ERP and simple 'facing your fears'?
ERP is a structured, therapist-guided approach with specific principles (adequate exposure duration, no safety behaviors, hierarchy sequencing). Unstructured fear-facing often allows subtle avoidance that prevents learning and may reinforce anxiety.
Can ERP be done without a therapist?
Therapist guidance significantly improves outcomes. Self-guided ERP is less effective, though structured self-help manuals and apps show modest benefits for mild anxiety. Therapist support enables better exposure planning and management of acute distress.
How long does habituation take?
Habituation typically occurs within 30–60 minutes of sustained exposure during a single session. Between-session habituation (anxiety decrease over days/weeks) generally requires 2–4 weeks of consistent exposures.
Sources
- Foa, E. B., & Kozak, M. J. (1986). Emotional processing of fear: Exposure to corrective information. Psychological Bulletin, 99(1), 20–35. DOI: 10.1037/0033-2909.99.1.20 ↗
- Foa, E. B., Yadin, E., & Lichner, T. K. (2012). Exposure and response (ritual) prevention for OCD: Therapist guide. Oxford University Press. ISBN: 9780195307559
How to cite this page
ScholarGate. (2026, June 3). Exposure and Response Prevention Therapy. ScholarGate. https://scholargate.app/en/clinical-psychology/exposure-response-prevention
Which method?
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