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BOLD Signal Changes Contrast Oxygen Metabolism in Cortex
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BOLD Signal Changes Contrast Oxygen Metabolism in Cortex
In a groundbreaking study poised to redefine our understanding of brain imaging, researchers have uncovered a phenomenon that challenges long-standing assumptions about the brain’s blood-oxygen-level-dependent (BOLD) signals. Traditionally, BOLD signals, measured through functional magnetic resonance imaging (fMRI), have been interpreted as direct indicators of neuronal activity, closely linked with oxygen metabolism in the cortex. However, the …
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