Active clinical trials for "Depressive Disorder, Major"

Recent research in mice models of Alzheimer's disease (AD) has demonstrated that one hour per day of exposure to 40 Hz flickering light therapy can halt the disease's progression, and improve cognition and memory. Moreover, recent data suggest that 40 Hz light stimulation may induce neuroplasticity and reduce neuroinflammation. In this study, the investigators aim to evaluate the antidepressant effects of 40 Hz light stimulation in Major Depressive Disorder (MDD). Patients will be exposed to 40 Hz invisible spectral flickering light (active setting) or continuous non-flickering white light (sham setting) in a home setting for 1 hour each day.

The goal of this study is to assess the effectiveness of psilocybin for the treatment of Major Depressive Disorder and potential therapeutic mechanisms. Enrolled participants will receive a single active dose of psilocybin, or a dose considered high enough to treat depression, administered orally with accompanying psychological support.

This study is designed to investigate effects of a single dose of amisulpride on functional brain changes during reward- and motivation-related processing and at rest in healthy volunteers (HV) and in patients with Major Depressive Disorder (MDD).

This research study is designed to look at the involvement of the glutamate system in depression. Each subject will undergo a screening appointment to determine study eligibility. Thereafter, the study will take 2 or 3 visits depending on schedule availability and will consist of one MRI scan, and PET scan. Subjects will also participate in cognitive testing. Depending on camera time, staff availability and subject schedule, total study participation may last 1-2 months.

This is a study that will recruit patients from the neurosurgery clinic and the regular TMS clinic. It's a smaller study designed to collect brain imaging pre-treatment and then use image guided TMS to treat patient with a one week "accelerated" rTMS protocol using the research TMS machine that is housed in Dr. Sean Nestor's lab. The idea is to examine whether severe treatment resistant depression has a different brain signature than less severe/TRD and whether we can get a therapeutic response from patients that would otherwise undergo neurosurgery or will ultimately undergo neurosurgery.

This study aims to better understand the mechanisms of action of antidepressants, but also the neural correlates of motivation deficits. One hundred patients with a moderate to severe major depressive episode will be enrolled in this prospective multicenter study. The objective will be to predict the therapeutic response to two first-line antidepressants on the basis of an early neurocomputational assessment of motivation. Antidepressant treatment will be administered as monotherapy after randomization between two drugs: escitalopram and vortioxetine. Patients will undergo six visits and follow-up for one year. The investigators will combine computer modeling and functional MRI to identify motivational deficits and elucidate their brain correlates before initiation, after 7 days and after 6 months of treatment. 36 healthy volunteers will also be included to allow comparison with patients with depression. They will not receive any treatment.

We aim to investigate here whether we can develop a reinforcement learning game which provides game-based feedback to encourage positive actions (behaviors) both inside and outside of the game. Does providing positive reward when participants make decisions which are associated with value-based actions (like those in BA) result in different game decisions? We propose that it will increase positive actions in the game. And, secondly, how does it affect short-term behavior (in one week)? We propose that it will increase pro-health activities and may reduce depressive symptoms.

The purpose of this study is to evaluate the feasibility of an evidence-based system to recommend core interventions, before the beginning of treatment, to psychotherapists treating low-income patients with depressive or anxiety disorders.

Three groups of subjects will be included: 20 subjects in the healthy control group, 20 subjects in the MDD electroacupuncture (EA) intervention group, and 20 subjects in the MDD waiting-list group (participants will receive no treatment within 4 weeks). The temperature and infrared thermography (IRT) images of the facial acupoints of three groups will be recorded by an infrared thermal-imaging camera. The average facial temperature and acupoints temperature will be analyzed and compared within 3 groups. In addition, the correlation between facial infrared radiation characteristics of MDD patients and emotional changes will be explored. Besides, the relative specificity of the two meridians will be investigated.

The goal of this randomized controlled trial is to evaluate the potential of a customized digital cognitive training intervention to target aspects of brain function in apathy of late-life depression and reduce symptoms of apathy and related cognitive and behavioral deficits. The investigators hypothesize that 4 weeks of a customized digital cognitive training program will lead to changes in brain connectivity, apathy severity, and cognitive control performance.