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Published on: August 11, 2015
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Effectiveness of fMRI-based Neurofeedback Therapy on Depression: A Systematic Review
Ali Khaleghi1, Hannaneh Samiei2, Hadi Zarafshan1
1Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Summary
Functional magnetic resonance imaging (fMRI)-based neurofeedback shows promise for treating depression resistant to standard therapies. This review found significant symptom reduction and neurobiological changes, suggesting its potential as an alternative treatment.
Area of Science:
- Neuroscience
- Psychiatry
- Medical Imaging
Background:
- Depression is a prevalent mood disorder with limited treatment options for non-responders.
- Traditional therapies may not be effective for all individuals with depression.
- Neurofeedback offers a potential alternative or adjunctive treatment approach.
Purpose of the Study:
- To systematically review the efficacy of functional magnetic resonance imaging (fMRI)-based neurofeedback for depression.
- To evaluate fMRI-neurofeedback as a treatment for treatment-resistant depression.
Main Methods:
- A comprehensive literature search was conducted across multiple databases.
- 26 studies, including open-label and randomized controlled trials, were included after eligibility assessment.
- Studies primarily focused on neurofeedback targeting amygdala activity.
Main Results:
- The majority of studies reported significant reductions in depressive symptoms.
- Eighteen studies demonstrated moderate to large effect sizes (Cohen's d: 0.38–1.50).
- Observed neurobiological changes included increased Blood Oxygenation Level Dependent (BOLD) activity and connectivity in emotion regulation regions.
Conclusions:
- fMRI-based neurofeedback is a promising adjunctive therapy for treatment-resistant depression.
- Evidence suggests positive effects on neural function and clinical outcomes.
- Further research is needed to address methodological limitations and enhance accessibility.
