A hidden brain signal may reveal Alzheimers long before diagnosis

Researchers have discovered a brain activity pattern that can predict which people with mild cognitive impairment are likely to develop Alzheimers disease. Using a noninvasive brain scanning technique and a custom analysis tool, they detected subtle changes in electrical signals tied to memory processing years before diagnosis. The findings point to a new way of spotting Alzheimers early-by listening directly to how neurons behave.