How the brain handles memories in mild cognitive impairment

This research study is investigating how the brain's networks that handle personal memories change in people with mild cognitive impairment — a condition where memory loss is more noticeable than typical aging but not yet severe dementia. Researchers will use advanced brain imaging (called high-density EEG) to measure electrical activity in your brain while you recall personal memories, and then apply a gentle, non-invasive form of brain stimulation called transcranial alternating current stimulation to see if it can help improve memory function. The goal is to understand the underlying brain mechanisms of memory loss so that better treatments can be developed in the future.

Scientists know that changes in brain networks happen long before memory problems become obvious, but we don't fully understand the detailed mechanisms causing these changes. This research aims to fill that gap by precisely mapping what goes wrong in the brains of people with mild cognitive impairment, which could eventually lead to earlier detection and new treatments.