Clinical Research Directory

Inclusion Criteria for participants with OCD: * age 18-65 * Primary diagnosis of OCD * Sufficient severity of OCD symptoms * ability to tolerate a treatment-free period * capacity to provide informed consent Inclusion criteria for healthy controls: * ages 18-65 * capacity to provide informed consent Exclusion criteria for participants with OCD: * Psychiatric or medical conditions that make participation unsafe * pregnant or nursing females * concurrent use of any medications that might increase the risk of participation (e.g. drug interactions) * presence of metallic device or dental braces Exclusion criteria for healthy controls: * any current or lifetime psychiatric diagnosis * pregnant or nursing females * major medical or neurological problem * presence of metallic device or dental braces