This document discusses implicit memory in Alzheimer's disease. It begins with an introduction that outlines different types of memory and common memory tests. It then reviews literature on implicit memory and Alzheimer's disease. The main sections analyze the results of a meta-analysis looking at factors that influence implicit memory priming effects in Alzheimer's patients. These factors include sample size, age differences, dementia severity, number of stimulus exposures, and orienting tasks. The document concludes by describing an experiment that tested young-old controls and age-matched Alzheimer's patients on stem-completion and cued-recall tasks to further explore implicit memory in healthy aging and Alzheimer's disease.