Tau Protein in Alzheimer Patient's Brain (IMAGE) Karolinska Institutet Caption The images show tau deposits in the brain of a patient with early-stage Alzheimer's disease. The warm colours indicate regions of heavy deposition and the difference in spread between the patient's first scan (to the left) and second scan 17 months later (to the right). The tau deposits were measured using the radioligand THK5317. Photo: Karolinska Institutet Credit Karolinska Institutet Usage Restrictions The image may only be used in connection to reports about this study. 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.