Safety and Feasibility of Temporal Interference Brain Stimulation for Treatment in Psychiatric Disorders

Phase I Clinical Trial of a New Non-invasive Deep Brain Stimulation Technique

The goal of this clinical trial is to validate if temporal interference brain stimulation (TIBS) is safe in healthy volunteers aged 20 to 65. The main questions it aims to answer are:

• Is it safe to apply TIBS intervention to the left hippocampus in healthy participants?
• Is it safe to apply TIBS intervention to the left insula in healthy participants?
• Is it safe to apply TIBS intervention to the left anterior cingulate cortex in healthy participants?
• Is it safe to apply TIBS intervention to the right inferior frontal cortex in healthy participants?

Participants will:

• Be Randomly allocated to either sham-first group or treat first-group, stratified by stimulated brain region, following a crossover-controlled experimental design
• Complete baseline cognitive evaluations and mental status assessments, and undergo a baseline MRI scan on the same day
• Receive stimulation for 5 consecutive days, followed by a 2-days washout period, then complete the remaining 5 days of stimulation.
• Complete post-intervention cognitive evaluations and mental status assessments, and undergo a post-intervention MRI scan on the same day

Inclusion Criteria:

• Healthy adults from the community
• Age between 20 and 65 years old
• No diagnosis of severe psychiatric disorders
• No family history of psychiatric diseases

Exclusion Criteria:

• Age below 20 years old or above 65 years old
• Currently prescribed any medication
• Diagnosis of psychiatric disorders (e.g., Major Depressive Disorder, Bipolar Disorder, Schizophrenia)
• Diagnosis of neurological disorders (e.g., Dementia, Stroke, Parkinson's disease)
• History of substance abuse
• Diagnosis of cancer or malignant tumors
• Chronic kidney failure or undergoing hemodialysis
• Pregnant or breastfeeding
• Severe arrythmia, presence of pacemaker, or metal implants in the brain
• Claustrophobia
• History or family history of seizure
• History of syncope
• Organic brian disease, brian trauma, or history of neurosurgery
• Received electroconvulsive therapy or repetitive transcranial magnetic stimulation within the past month
• Skin disorders (e.g., dermatitis, psoriasis, eczema)
• Currently participating in other clinical interventional trials
• Presence of any metal implants or devices affected by electromagnetic fields