Brain Image (IMAGE) University of Arizona Caption This image highlights areas in a PPA-affected brain during a language task where researchers observe functional abnormality (green) and structural degenerating (yellow). The green areas may be at-risk or dysfunctional, even if the neurons are not dead yet. (Courtesy: Aneta Kielar) Credit Aneta Kielar Usage Restrictions This visual may only be used in conjunction with reporting on or posting of this news release. Credit must be given as indicated. 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.