In a study in mice, researchers found that low-frequency brain oscillations generated by laser stimulation of the anterior cingulate cortex (ACC), a brain region previously associated with white matter changes in humans following meditation training, resulted in increased oligodendrocyte proliferation and changes to myelinated axons in nerve fibers underlying the ACC, suggesting potential biological mechanisms underlying brain stimulation and connectivity.
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Article #18-02160: "Changes in white matter in mice resulting from low-frequency brain stimulation," by Denise Piscopo et al.
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Proceedings of the National Academy of Sciences