The purpose of this research is to test out a new way of treating generalized anxiety disorder (GAD) with low intensity focused ultrasound pulsation (LIFUP). If the subject agree to participate in the research study, the participation will last approximately 10.5 hours over seven (7) days. The visits are as follows: 1- consent and MRI, 2- and 3- focused ultrasound will be delivered outside of the MRI environment, 4- MRI plus focused ultrasound, 5- assessments 1 week post focused ultrasound, and 6- one month follow-up assessments. Research studies are voluntary and include only people who agree to take part.
This is a research study to find out if a new form of electroconvulsive therapy (ECT) is as effective and safe as a current form. The new form of ECT is called FEAST which stands for Focal Electrically Administered Seizure Therapy. This new form uses different electrode placement on the head and a different way of delivering the electricity. FEAST will be administered with an investigational device in this clinical trial. If enrolled in this this study, participants will be randomly assigned (like flipping a coin) to receiving FEAST or the current standard form of ECT called Right Unilateral UltraBrief ECT (RUL UB).
Depression is a very common disorder that is most often chronic or recurrent in nature. Many subjects do not respond adequately to an initial antidepressant treatment trial. Subjects who do not respond adequately to multiple therapeutic interventions are considered to have treatment-resistant depression (TRD). Among the treatment options for subjects with TRD is Vagus Nerve Stimulation (VNS) Therapy.This blinded, randomized, multicenter controlled study is intended to collect evidence that VNS Therapy as an adjunctive therapy improves health outcomes for patients with TRD.
Currently rTMS for treating depression is delivered without knowing whether the TMS pulses are synchronized with the patient's brain rhythms. We have built a combined TMS/fMRI/EEG machine and have shown that delivering a TMS pulse over the prefrontal cortex precisely timed produces a bigger brain response. We now wonder if precisely timing the TMS pulses might enhance the antidepressant effects of TMS. We will randomize depressed patients to either the current standard of care, or the same TMS but precisely timed.
The purpose of this study is to compare the antidepressant efficacy of two different coils used to stimulate the brain during rTMS (repetitive TMS), including the evaluation of both the safety and effectiveness of the test article for the H-7 coil. This study compares the H7-coil (which is new and experimental, and not FDA approved at this time) to the H1-Coil (which is FDA approved to treat depression) deep brain rTMS in subjects with Major Depressive Disorder (MDD).
We will study healthy adults with a brain stimulation tool (TMS) either inside or outside of the MRI scanner, and test with EEG whether it matters where we place the TMS coil on the head. The TMS induced changes in EEG have been proposed as a surrogate measure of brain connectedness, which changes greatly when we are conscious and when we are not.
Over the past 30 years we have discovered that both the efficacy and the side effects of ECT come not only from the induced seizure, but by the currents of electricity and where they go in the brain. In all patients we now determine, at the first treatment session, the minimum dose of electricity needed to produce a seizure. This is called the seizure threshold. Subsequent treatments are then given at 6 or 9 times this number. The method of titrating has not been fully explored. We propose to titrate with two different currents, one of which is much lower than standard clinical practice. We need to do this twice in each patient, on the first and second treatment sessions, and compare the difference. If we find that that lower currents are paradoxically better, then this will change ECT practice around the world. Patients will receive less overall electricity, with likely fewer side effects.