Alzheimer: Problems finding your way around may be earliest sign

Long before Alzheimer's disease can be diagnosed clinically, increasing difficulties building cognitive maps of new surroundings may herald the eventual clinical onset of the disorder, finds new research from Washington University in St. Louis.


Graphic: Bookcase in a green room; Copyright: Denise Head

Participants in this Alzheimer's disease study used a joystick to navigate a virtual maze and locate landmarks, such as this bookcase; © Denise Head