Understanding Brain Mechanisms Involved in Autobiographical Memory

This study is investigating the brain mechanisms involved in autobiographical memory — the ability to recall personal life experiences — comparing younger adults, older adults without cognitive problems, and people with mild cognitive impairment (early-stage memory problems). **You may be eligible if...** - You are a younger adult (18–35) or older adult (55+) without cognitive impairment, OR - You are 55 or older with a clinical diagnosis of mild cognitive impairment (MCI) - MCI participants must have a cognitive test score of 18 or above and a stable medication dose for at least 6 weeks - You completed at least 8th grade education (MCI group) - You are willing and able to participate in MRI scanning **You may NOT be eligible if...** - You have major depression, schizophrenia, or psychosis - You are blind or have other disabilities preventing task completion - You have metal implants in your body that are not MRI-safe - You are under 55 with a cognitive impairment diagnosis Talk to your doctor to see if this trial is right for you.