Brain Image (IMAGE) Keck School of Medicine of USC Caption Brain with amyloid plaque deposits, shown using T1w MRI and PET. Amyloid plaques clump together between the nerve cells in the brains of patients with Alzheimer's disease. Credit James Stanis, USC Stevens INI Usage Restrictions none License Original 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.