Alzheimer's Disease Atrophy Factors (image) Massachusetts General Hospital Share Print E-Mail Caption Mathematical modeling of brain scans of patients with Alzheimer's disease and others at risk for the disorder has allowed the identification of three atrophy factor patterns, based on the loss of gray matter throughout major areas of the brain, which may help explain the variations in symptoms occurring in individual patients. Credit Xiuming Zhang, National University of Singapore Usage Restrictions Usage restricted to coverage of this news release and the associated scientific study. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.