Mount Sinai Study Finds DBS Rewires White Matter in Depression, Altering Brain-Wide Networks
Updated
Updated · Newswise · Jun 2
Mount Sinai Study Finds DBS Rewires White Matter in Depression, Altering Brain-Wide Networks
3 articles · Updated · Newswise · Jun 2
Nature Neuroscience published Mount Sinai findings showing deep brain stimulation directly remodels white matter pathways linked to depression, offering the first direct evidence that DBS can physically rewire brain circuits.
Using a non-human primate model, researchers stimulated pathways near the subcallosal anterior cingulate cortex and found higher fractional anisotropy in the cingulum bundle, along with more myelinated oligodendrocytes and greater myelination.
Brain-wide effects extended beyond local wiring: DBS also changed functional connectivity across large-scale networks, especially the default mode network, which is strongly associated with depression and rumination.
The work helps explain DBS's sustained benefits in treatment-resistant depression and could guide optimized stimulation strategies, while Mount Sinai is now testing whether the same white-matter remodeling occurs in human patients.
Beyond depression, what other brain disorders could be 'rewired' using this new technique?
If brain implants can physically rewire circuits, can we achieve the same results without surgery?
Deep Brain Stimulation Physically Remodels White Matter: Landmark Discovery Redefines Treatment for Depression and Neuropsychiatric Disorders
Overview
A groundbreaking study published in Nature Neuroscience on June 1, 2026, provides the first direct evidence that Deep Brain Stimulation (DBS) not only modulates brain activity but also physically remodels the brain's white matter pathways. This discovery shows that DBS induces significant structural changes and brings about functional improvements across large-scale neural networks. These findings offer a concrete biological explanation for DBS's therapeutic effects, especially in treatment-resistant depression, and open new directions for more targeted and effective therapies. The study's insights pave the way for lasting improvements in brain communication and future advancements in DBS interventions.