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Danger ideation reduction therapy (DIRT): preliminary findings with three obsessive-compulsive washers
1Department of Behavioural Sciences, Faculty of Health Sciences, University of Sydney, Lidcombe, NSW, Australia.
Behaviour Research and Therapy
|December 24, 1997
Summary
Danger Ideation Reduction Therapy (DIRT) effectively reduced obsessive-compulsive symptoms in contamination/washing concerns. This novel approach, avoiding traditional exposure, showed sustained improvements at follow-up.
Area of Science:
- Psychiatry
- Clinical Psychology
- Behavioral Therapy
Background:
- Obsessive-compulsive disorder (OCD) often involves contamination fears.
- Exposure and response prevention (ERP) is a common treatment but not always accepted.
- Alternative therapies are needed for patients unwilling to undergo ERP.
Purpose of the Study:
- To evaluate the efficacy of Danger Ideation Reduction Therapy (DIRT) for OCD.
- To assess DIRT's impact on contamination-related obsessions and compulsions.
- To determine if DIRT reduces danger expectancies without ERP.
Main Methods:
- DIRT was administered to three OCD patients with contamination concerns who refused ERP.
- DIRT components included cognitive restructuring, filmed interviews, and microbiological experiments.
- Treatment involved 6-10 weekly 1-hour sessions.
Main Results:
- All three subjects showed significant reductions in OCD symptom scores post-treatment.
- Improvements were noted on the Padua Inventory and Maudsley Obsessional-Compulsive Inventory.
- Symptom reductions were maintained at a 3-month follow-up.
Conclusions:
- DIRT appears to be an effective treatment for contamination-related OCD.
- DIRT offers a viable alternative for patients who decline ERP.
- Reducing danger expectancies may be a key mechanism in DIRT's efficacy.