Measuring Automated Behavioral Observations

Eligibility Details: Inclusion Criteria: OCD subjects: - The subject has a minimum score of ≥16 on the Y-BOCS; - If applicable, on a stable pharmacologic regimen; - Sample will be enriched with OCD subjects having contamination obsessions and handwashing compulsions, and scores on items 9 and 10 of the Y-BOCS reflecting difficulty resisting and controlling compulsions; Healthy Control Subjects: - Men and women will be age/gender matched with subjects - Absence of any psychiatric disorder determined by the MINI^53 for DSM-5 with the exception of non-impairing specific phobia. - Low scores on measures of contamination concerns and disgust sensitivity based on Y-BOCS scores below 10 and the Disgust Scale-Revised (total score <8). Exclusion Criteria: OCD Subjects: - Subject has a documented lifetime diagnosis of psychotic disorders such as schizophrenia; - Alcohol or substance abuse/dependence reported within 6 months, excluding nicotine; - The subject is deemed at high risk of suicidal behavior or impulsivity. The Beck Depression Inventory^52 (BDI) will be completed by all subjects and responses reviewed by a clinician. Healthy Control Subjects: - Those not meeting the inclusion criteria described in the inclusion section above.