Auriel Willette, Iowa State University (IMAGE) Iowa State University Caption Auriel Willette used data from brain scans and memory tests to track the progression of Alzheimer's disease. Credit Blake Lanser, Iowa State University Usage Restrictions None License Licensed content 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.