Alzheimer’s disease is not limited to a deterioration of memory; rather, it is a profound neurodegenerative process that compromises emotional circuits, identity, and the very expression of human experience — a silent transformation during which the face continues to reveal what the brain progressively loses, argues Prof. Freitas-Magalhães, the world's leading expert for Neuroscience and Biobehavioral Psychology and the Encyclopedia of Human Behavior, by Elsevier, Oxford, in this new and extraordinary book on the 20-year longitudinal research of Alzheimer’s disease and the facial expression of emotion.