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The purpose of this study is to examine the brain functioning of OCD patients and healthy controls before and after treatment with Exposure and Response Prevention (EXRP) therapy.
The capacity to coordinate thoughts and actions to execute goal-directed behaviors (cognitive control) and the capacity to anticipate, respond to, and learn from reward (reward processing) are key processes for human behavior. Dysfunction in these processes has been hypothesized to contribute to repetitive thoughts and behaviors in many disorders, including obsessive-compulsive disorder (OCD), Tourette Syndrome (TS), and eating disorders. We will use multimodal imaging to investigate neural circuits that support cognitive control and reward processing, using OCD as a model system. The short-term goal is to clarify how circuit-based abnormalities contribute to repetitive thoughts/behaviors; these data will inform future transdiagnostic studies. The long-term goal is to identify control and reward circuit-abnormalities as targets for new transdiagnostic treatments.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patients with OCD | Experimental | Behavioral: Exposure & Response Prevention (EX/RP) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Exposure & Response Prevention (EX/RP) | Behavioral | Exposure and Response Prevention (EX/RP) is a type of Cognitive Behavioral Treatment for treating OCD. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in brain activation (fMRI) and fractional anisotropy (Diffusion tensor imaging) after therapy | Baseline & approximately 10 weeks later |
| Measure | Description | Time Frame |
|---|---|---|
| Change in reaction times and correct responses on Stop signal reaction time task | Baseline and approximately 10 weeks later, at second scan |
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Inclusion Criteria for Patients:
Exclusion Criteria for Patients:
Inclusion Criteria for Healthy Volunteers
- Male and females aged 18-55
Exclusion Criteria for Healthy Volunteers
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| Name | Affiliation | Role |
|---|---|---|
| Blair Simpson, MD, Ph.D | New York State Psychiatric Institute | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| NY State Psychiatric Institute | New York | New York | 10032 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 39879875 | Derived | Wheaton MG, Kalanthroff E, Mandel M, Marsh R, Simpson HB. Neurocognitive performance in obsessive-compulsive disorder before and after treatment with cognitive behavioral therapy. J Behav Ther Exp Psychiatry. 2025 Jun;87:102019. doi: 10.1016/j.jbtep.2025.102019. Epub 2025 Jan 20. | |
| 33446895 | Derived | Shi TC, Pagliaccio D, Cyr M, Simpson HB, Marsh R. Network-based functional connectivity predicts response to exposure therapy in unmedicated adults with obsessive-compulsive disorder. Neuropsychopharmacology. 2021 Apr;46(5):1035-1044. doi: 10.1038/s41386-020-00929-9. Epub 2021 Jan 14. |
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| ID | Term |
|---|---|
| D009771 | Obsessive-Compulsive Disorder |
| ID | Term |
|---|---|
| D001008 | Anxiety Disorders |
| D001523 | Mental Disorders |
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| 31548396 | Derived | Pagliaccio D, Middleton R, Hezel D, Steinman S, Snorrason I, Gershkovich M, Campeas R, Pinto A, Van Meter P, Simpson HB, Marsh R. Task-based fMRI predicts response and remission to exposure therapy in obsessive-compulsive disorder. Proc Natl Acad Sci U S A. 2019 Oct 8;116(41):20346-20353. doi: 10.1073/pnas.1909199116. Epub 2019 Sep 23. |