Targeting Large-scale Networks in Depression With Real-time fMRI Neurofeedback
University of Michigan
Summary
The purpose of this study is to develop a technique called real time fMRI neurofeedback. This technique uses a regular MRI scanner, except that special software allows the researchers to measure activity in participants brain, using fMRI, and then give information, in the form of a feedback signal, which indicates brain activity in real time, while in the MRI scanner. The larger goal of this study is to develop ways to help people, including those with depression, better regulate brain activity. The researchers think that this may be helpful in managing psychiatric symptoms. This study design has three phases, however, only two phases (phase 2 and 3) are considered to be a clinical trial. Phase 2 (part 2) was registered and is NCT05934604. This is the phase 3 (part 3) for this project and is funded by the National Institutes of Health.
Description
Part 3/Phase 3 study hypothesis are: * Rest Focus Task (RFT) will activate brain networks at the individual subject level to provide a viable signal for Neurofeedback (NF) * At the group level, RFT in the Active\>Passive contrast will activate canonically defined salience network * Neurofeedback-reinforced practice over the session will increase RFT activation over the course of the training session, comparing RFT activation, without NF, before and after NF runs. * Valid Neurofeedback will increase RFT activation more compared to sham NF (assessed during the no-NF session).
Eligibility
- Age range
- 18–55 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Meets The Diagnostic and Statistical Manual of Mental Disorders five (DSM5) criteria for Major Depressive Disorder, single or recurrent, active or in partial remission * Patient Health Questionnaire (PHQ9) greater or equal (≥)6, and approximately (\~) 50% with PHQ9≥10 * If participants are taking antidepressant medications, on stable dosage for 4 weeks * No history of active substance use disorder in the past 6 months * Absence of suicidal thoughts with plans or intentions, as assessed by Columbia Suicide Severity Rating Scale (C-SSRS) * If a woman of child-bearing age,…
Interventions
- OtherFMRI with sham controlled feedback
During the second fMRI, the study will introduce the real time fMRI neurofeedback part of the study. This is where subjects will use the activity from the brain to control the size of the circular pattern viewed in the first two visits. This is real time fMRI because the pattern will change, in real time, based on what the fMRI scan measures in the brain. Participants will be encouraged to make the circular pattern grow in size, just by thinking about it. In order to see if the neurofeedback is really helping change the size of the circular pattern, the study team will have a control condition. In this controlled condition, subjects will see the circular pattern change, and the study team will ask participants to try and increase the size, except that the changing size will not actually be determined by your brain activity. This a called a sham condition because the feedback signal is not real.
- OtherFMRI with real time feedback
During the second fMRI, the study will introduce the real time fMRI neurofeedback part of the study. This is where subjects will use the activity from the brain to control the size of the circular pattern viewed in the first two visits. This is real time fMRI because the pattern will change, in real time, based on what the fMRI scan measures in the brain. Participants will be encouraged to make the circular pattern grow in size, just by thinking about it.
Location
- University of MichiganAnn Arbor, Michigan