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Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
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Mindfulness-based therapy modulates default-mode network connectivity in patients with opioid dependence
Reham Fahmy1, Maha Wasfi1, Rania Mamdouh1
1Department of Psychiatry, Kasralainy Faculty of Medicine, Cairo University, Egypt.
Summary
Mindfulness-based therapy (MBT) shows promise for treating opiate dependence by altering brain connectivity. This study found MBT reduced anterior default mode network (DMN) connectivity, associated with increased mindfulness.
Area of Science:
- Neuroscience
- Psychiatry
- Addiction Medicine
Background:
- Mindfulness-based programs show clinical benefits for substance-use disorders (SUD).
- Previous research links mindfulness meditation to reduced default mode network (DMN) connectivity.
- Limited studies explore mindfulness effects on DMN connectivity in SUD patients.
Purpose of the Study:
- To investigate changes in DMN connectivity in opiate-dependent patients undergoing mindfulness-based therapy (MBT).
- To assess the impact of MBT on DMN connectivity during the first month of treatment.
- To correlate functional connectivity changes with measures of impulsivity, distress tolerance, and mindfulness.
Main Methods:
- Resting-state functional MRI (1.5 T) was used on 32 opiate-dependent patients.
- Patients were assigned to MBT or treatment as usual (TAU) groups.
- Independent Component Analysis examined anterior and posterior DMN subsystems before and after four weeks of treatment.
Main Results:
- Patients receiving MBT showed increased mindfulness scores compared to TAU.
- MBT was associated with decreased right inferior frontal cortical connectivity within the anterior DMN.
- Within the MBT group, decreased right superior frontal cortex connectivity was observed post-treatment.
- Inferior frontal cortex function correlated significantly with mindfulness measures.
Conclusions:
- Mindfulness-based therapy may be beneficial for opiate-dependent patients during abstinence.
- MBT induces distinct functional connectivity changes within the DMN in opiate-dependent individuals.
- These findings support MBT as a potential therapeutic intervention for SUD.
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