"Unveiling the Brain's Response to Blue Light: Scientists Capture Powerful Signal in White Matter"

Scientists at Vanderbilt University have used functional magnetic resonance imaging (fMRI) to detect blood oxygenation-level dependent (BOLD) signals in the white matter of the brain. They found that when individuals performed tasks during brain scans, BOLD signals increased in white matter throughout the brain. This discovery challenges the historical focus on gray matter and suggests that white matter plays a significant role in brain activity. Further research will explore the implications for brain disorders and investigate the biological basis for these changes.