Anxiety, Depression, Stress Disorders, Post-Traumatic
Conditions
Brief summary
The purpose of the proposed study is to examine if a repeated treatment of High Definition Transcranial Direct Current Stimulation (HD-tDCS) can increase the functional connectivity between the left ventrolateral prefrontal cortex and posterior cingulate, which may further enhance the effects of cognitive behavioral therapy with mindfulness classes.
Interventions
DEVICEMxN-9 HD-tES Stimulator (Soterix Inc.)
Patients will be stimulated with high definition transcranial direct current stimulation (HD-tDCS) for 5 weeks (every weekdays; one session per day). In each session, a constant current at 2mA will be passed on the target brain areas for 20 minutes.
DEVICESham Stimulation
The same stimulation protocol will be used as in Active stimulation except that a sham mode will be selected in the stimulator machine.
Sponsors
University of Manitoba
Winnipeg Foundation
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Masking description
Sham stimulation mode will be used in the HD-tES machine. For sham stimulation, the current will be applied for 30 seconds ramp-up followed by 30 seconds ramp-down, and thus no active stimulation will be administered except for the initial and last 1 minutes.
Intervention model description
Thirty participants among those who are enrolled in the parent clinical trial will be recruited. Participants will receive 5-week CBTm treatment and a battery of psychological assessment as part of the parent clinical trial. Individuals enrolled in the current study will receive daily HD-tDCS during the period of CBTm treatment (5-week). Half of the individuals will receive real stimulation and the other half will receive sham stimulation. Participants will be scanned with MRI before and after the 5-week treatment. EEG data will be collected before (10 minutes), during (20 minutes) and after (20 minutes) each HD-tDCS session .
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* all patients who have agreed to participate in virtual mental health treatment at health care sites throughout Manitoba. Eligible participants will be those enrolled in a range of mental health programs, including CBT, DBT, virtual hospital wards, and group-based treatment (e.g., CBTm, Managing Difficult Emotions, etc). The target population will also include providers and decision makers offering virtual mental health programs. Individuals must meet the following criteria to be eligible to participate in the study: 1) must be a patient/client enrolled in a virtual mental health program OR a provider/decision maker offering a virtual mental health program, and 2) located within Manitoba
Exclusion criteria
* contraindication for MRI (e.g., metallic implants and claustrophobia)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Functional Connectivity | Change from Baseline Functional Connectivity after 5 month HD-tDCS/CBTm treatment | Functional Connectivity between the targeted brain regions measured by resting state fMRI (level of synchronous fMRI signal, standardized) |
Countries
Canada
Outcome results
None listed