Exposure and Response Prevention (ERP)
Exposure and Response Prevention (ERP) is a cognitive-behavioral psychotherapy developed by Victor Meyer in 1966. Its core mechanism: prolonged exposure to obsessional triggers while refraining from the compulsion permits new learning; whether that learning is habituation or inhibitory (the old association overridden rather than erased) is still contested. This catalogue links it to OCD, typically in individual format, short-term.
Related condition topics
These links support exploration. They do not establish that ERP is effective or recommended for each condition.
How Exposure and Response Prevention works
Prolonged exposure to obsessional triggers while refraining from the compulsion permits new learning; whether that learning is habituation or inhibitory (the old association overridden rather than erased) is still contested
Ontology
Obsessions are maintained by compulsive neutralization; avoidance prevents disconfirmation
Therapeutic Voice
"I know this feels unbearable. Touch the doorknob, and then we sit here without washing while you tell me every couple of minutes where the anxiety is between 0 and 100."
View of the Person
An organism whose avoidance maintains fear; exposure permits new learning that inhibits old associations
Epistemology
Evidence
1 condition assessment available
An overall effectiveness assessment has not been completed. Completed assessments for specific populations appear below.
Condition-specific assessments
Each conclusion applies to the population and use described. These source-based assessments do not certify the full entry or replace expert clinical review.
OCD & Related Disorders
Population and scope: Adults with obsessive-compulsive disorder receiving CBT that includes exposure and response prevention. This is not an assessment for the full OCD-related-disorders category, including hoarding, trichotillomania or excoriation.
Guideline recommendation
NICE CG31 (2005) recommendations 1.5.1.1–1.5.1.4 explicitly offer CBT including ERP for adult OCD, with intensity matched to impairment and treatment response. For moderate impairment it offers a choice between an SSRI and more intensive CBT including ERP; for severe impairment it recommends their combination. The source uses “offer” wording rather than a separately reported GRADE strength. This supports an ERP-within-CBT guideline assessment for adult OCD, not every related diagnosis, a universal monotherapy claim or the catalogue’s legacy effect-size and response estimates. NICE currently lists an update in progress; the 2005 recommendations remain published and the July 2024 changes were presentational.
Source assessment dated
Guidelines and official sources (2)
1 clinical guideline check · 1 evidence registry check
Read the recommendation and its scope. A source may discuss an approach without recommending it.
- Obsessive-compulsive disorder and body dysmorphic disorder: treatment (CG31)
Recommendation for the stated population
NICE recommends CBT including ERP for OCD.
Scope: Adults with OCD; treatment intensity and combination depend on impairment
- Exposure and response prevention for obsessive-compulsive disorder
Discussed in the source
The Society record lists Strong under both 1998 and 2015 criteria. This remains an EST rating, separate from NICE clinical recommendations.
Scope: ERP for OCD
Recorded material under review
The existing notes below are retained separately from assessment records. These recorded claims await source checking, including study design, recommendations and numerical estimates.
NICE CG31 (2005), recommendations 1.5.1.1–1.5.1.4, recommends CBT including ERP for adults with OCD. Treatment intensity and the choice of CBT or an SSRI depend on functional impairment, response and preferences; severe functional impairment calls for combined CBT including ERP and an SSRI.
Sources for the corrected statements:
Training and certification
Graduate CBT training + specialized ERP for OCD training. IOCDF resources
BTTI through IOCDF
BTTI: 3 days + supervised ERP cases
$1K-3K
Clinical cautions and blind spots
Assessment and precautions
Active suicidality, active psychosis, severe depression that prevents engagement in exposure tasks, untreated PTSD where OCD exposures overlap with trauma content, clients who have not given informed consent to tolerate distress
Blind spots
The completed assessment concerns CBT including ERP for adult OCD; it does not establish effectiveness across all anxiety presentations. Exposure without relational attunement can feel mechanical.
Sources for the corrected statements:
Philosophical roots
Mowrer (two-factor theory); Pavlov (classical conditioning); Rachman (habituation); Craske (inhibitory learning); empiricism broadly
Compared with other approaches
ERP in 1 Comparative Clinical Vignette
Each vignette presents the same client through multiple theoretical lenses side by side — showing how ERP formulates presenting problems, sets treatment focus, and sounds in the consulting room compared with other approaches. This comparative pedagogy is unique to Epoché Clinical; no other clinical reference systematically formulates the same case across traditions.
Test Yourself
Why is response prevention essential for OCD?
Show answer
The compulsion neutralizes the exposure, so nothing new is learned. Refraining lets the client find out that the feared outcome does not arrive and that the anxiety is survivable.