
Neural Mechanisms of Response Inhibition Training for OCRD
Obsessive-Compulsive DisorderTricholemmoma1 moreThe impaired ability to suppress an inappropriate but pre-potent response (response inhibition; RI) characterizes several debilitating clinical problems, including obsessive-compulsive and related disorders (OCRD) such as obsessive-compulsive disorder, trichotillomania, and skin picking disorder. There is a critical need to develop an effective and durable treatment for OCRDs with demonstrable evidence for improving impaired RI. The purpose of our project is to examine the impact of a novel computerized intervention, response inhibition training (RIT), on neural indices of RI, and examine the mechanistic link between engagement of the neural RI targets and change in OCRD symptoms. To this end, this project will conduct a randomized clinical trial for individuals with OCD, trichotillomania, and/or skin picking disorders. Participants will be randomly assigned to 8 to 16 sessions of computerized RIT or a computerized placebo training. Various clinical, behavioral, and brain-imaging data will be acquired to evaluate the training effects at baseline, post-training, and 1-month follow-up periods.

Evaluation of Family-Based Behavioral Treatments for Youth With Anxiety and Obsessive-Compulsive...
Obsessive-Compulsive Disorder in ChildrenAnxiety Disorder of Childhood7 moreAnxiety and obsessive-compulsive disorders are among the most common in children. Although cognitive behavioral therapy (CBT) is an effective and evidence-based treatment for such disorders, access to CBT is often limited. Family-based and internet-delivered therapy is one method to increase access to care. The purpose of this project is to evaluate the comparative efficacy and treatment mechanisms of two lower-intensity but effective treatments for families of children with anxiety or obsessive compulsive disorder (OCD) via telehealth compared to an adapted Relaxation and Mentorship Training (RMT) intervention involving breathing exercises with a therapist.

SEEG-Guided DBS for OCD
Obsessive-Compulsive DisorderThis is a dual-site, double-blinded, randomized, crossover study design for SEEG-guided 4-lead DBS for treatment-refractory OCD, followed by open label stimulation for an additional 6 months. The study will be conducted in 3 stages: Stage 1 will consist of SEEG brain mapping and optimization of stimulation parameters. Stage 2 will consist of DBS surgery and further optimization of stimulation parameters. Stage 3 will be randomized, crossover treatment, followed by open label treatment.

Study on the Efficacy Mechanism of Natural Psychotherapy for Neurosis
Obsessive-Compulsive DisorderWe explore objective indicators of the efficacy of natural psychotherapy in the treatment of disorders such as obsessive-compulsive disorder

Transdiagnostic Versus Diagnosis-specific Cognitive-behavioral Therapy
Panic DisorderGeneralized Anxiety Disorder3 moreThe primary aim of the pilot study is to investigate the feasibility of conducting a randomized controlled trial (RCT) comparing the effects of transdiagnostic and diagnosis-specific cognitive-behavioral therapy (CBT) for patients with anxiety disorders in routine psychiatric outpatient care in Stockholm, Sweden. It is hypothesized that an RCT is feasible in terms of recruitment, retention, therapist competence and adherence to treatments, and that the treatments are well received by participants.

An ERP-based Mobile Intervention as an Adjunctive Treatment for OCD
Obsessive-compulsive Disorders and SymptomsObsessive-Compulsive DisorderThe objective of this feasibility study is to evaluate the feasibility, acceptability, and potential usefulness of the investigational device, a mobile software application (app) (OC Free) for treatment of OCD (contamination obsession only), adjunctive to individuals receiving outpatient ERP therapy. OC Free is an iOS/Android app that provides treatment via computerized exposure and response prevention (ERP). The study will evaluate preliminary safety and effectiveness of the app using gold-standard, validated 'clinician-administered' and 'self-reporting measures.'

A Precision Medicine Approach to Target Engagement for Emotion Regulation
Emotional RegulationDepression5 moreThe proposed study is designed to first test whether teaching people personalized or standardized emotion regulation skills leads to greater decreases in daily negative emotion intensity. Second, using data from an initial sample, the investigators will prospectively assign an independent sample of participants to receive their predicted optimal or non-optimal skills to determine if it is feasible and efficacious to match participants to the most appropriate training condition. Results of these studies may identify the mechanisms by which emotion regulation interventions impact emotional functioning and allow for the development of personalized, evidence-based, and scalable emotion regulation interventions.

Four-day Intensive Treatment Versus Standard Cognitive Behavioral Therapy for Adults With Obsessive-compulsive...
Obsessive-Compulsive DisorderThe goal of this clinical trial is to compare a novel, condensed version of cognitive behavioral therapy (Bergen 4-Day Treatment, B4DT) to the gold standard psychological treatment (gold-standard CBT) for obsessive compulsive disorder (OCD). The main question it aims to answer is: • Is B4DT non-inferior to standard cognitive behavioral therapy (CBT) with regard to OCD symptoms 14 weeks after treatment start? Adult patients with obsessive compulsive disorder will be randomly assigned to receive either gold standard CBT one to two times per week for 14 weeks, or 4 days of B4DT during one week.

Ketamine and Stress in OCD
Obsessive-Compulsive DisorderPsychiatric DisorderThe main goal of this trial is to demonstrate therapeutic efficacy of low dose ketamine in patients with OCD. We expect that ketamine will alleviate symptoms in the hours following application, but also - if effective - that the anti-OCD effects might last for several days after a single infusion.

Effects of Psilocybin in Obsessive Compulsive Disorder
Obsessive-Compulsive DisorderThis study will test the feasibility, safety, and evidence for efficacy of psilocybin administration in participants with obsessive compulsive disorder (OCD). This will serve as a preliminary proof of concept study for future larger studies aimed to investigate the utility, cognitive mechanisms, and neural correlates of this intervention.