Transcranial Temporal Interference Stimulation: Transcranial temporal interference stimulation (tTIS) is a novel neurostimulation technique that utilizes two or more electric fields of specific frequencies to modulate the oscillations of neurons at the desired spatial location in the brain. The physics of tTIS offers the advantage of noninvasively regulating deep brain structures and minimally stimulating the overlying cortex outside the selected target.
Study summary
Targeted temporal interference stimulation (tTIS) of the nucleus accumbens (NAc) may modulate the abnormal electrophysiological activity in individuals with obsessive-compulsive disorder (OCD), thereby improving their obsessive-compulsive symptoms.
Eligibility
Sex
ALL
Min age
18 Years
Max age
65 Years
Healthy volunteers
No
Inclusion Criteria:
* Were between 18 and 65 years old;
* Were diagnosed with OCD by an experienced psychiatrist utilizing the Structured Clinical Interview for DSM-5 (SCID);
* Were able to participate in the entire trial and face-to-face on-site assessment
Exclusion Criteria:
* Pregnant or breastfeeding;
* Suffered from organic brain diseases or severe physical illness;
* Had a history of substance or alcohol abuse;
* Presence of comorbid psychiatric disorders (e.g., major depressive disorder) or a high risk of suicide;
* Have received electroconvulsive therapy, transcranial magnetic stimulation, tDCS, tACS, or other neurostimulation treatments within the past 6 months;
* Presence of contraindications to MRI or tTIS, such as severe head trauma, prior brain surgery, intracranial or cardiac metallic implants, etc.
Primary outcome measure(s)
Obsessive-compulsive symptoms — Baseline, immediately after completion of the 5-day intervention (Day 5), and at 1-week, 1-month, and 3-month follow-up Obsessive-compulsive symptom severity will be assessed using the Yale-Brown Obsessive Compulsive Scale (Y-BOCS). The Y-BOCS total score ranges from 0 to 40, with higher scores indicating greater symptom severity.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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