Memory precision in normal and pathological aging
Deterioration of memory precision is a hallmark of aging-related memory declines: Older adults usually have difficulties in identifying learned items from similar lures (item precision), remembering previously learned spatial locations (spatial precision), or matching learned items with their locations (association). Although different tasks have been used to examine neural mechanisms of these age-related memory precision deficits, previous studies have mostly focused on memory retrieval processes. How the brain encodes precise information in normal vs. pathological aging (e.g., amnestic Mild Cognitive Impairment; aMCI), and how normal and pathological aging impact memory precision during encoding, has not been thoroughly investigated. Here, we propose to design a fully parametric memory precision task to tackle this question at both the behavioral and brain level (using Electroencephalography). Then, we will investigate how the memory-precision decline in older adults specifically affects their daily well-being. We hope this project will help us to better understand memory problems in different age groups and eventually help us to develop intervention programs that promote optimal aging.