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White Matter Integrity

Meaning

White Matter Integrity is the measure of the structural health and organizational quality of the myelinated axons that form the brain’s communication highways, connecting various gray matter regions. High integrity is characterized by dense, intact myelin sheaths and organized fiber tracts, which are essential for rapid, synchronized neural signal transmission and efficient cognitive processing. The preservation of white matter integrity is a critical biomarker of neurological health and cognitive longevity.