"Mysterious Brain Signals Leave Scientists Perplexed"

Scientists have discovered brain signals in the white matter of the brain, which is primarily made up of axons that connect brain cells. These signals, known as blood oxygenation-level dependent (BOLD) signals, were observed to increase during different tasks, but the cause and significance of this increase are still unknown. The researchers hope that further understanding of these white matter brain signals will help in addressing health issues such as Alzheimer's disease and epilepsy.