Alzheimer's comparison (IMAGE) Picower Institute at MIT Caption A comparison of what can be seen in the orbitofrontal cortex of control and Alzheimer’s brain samples: Note in round 2 of labeling that much more amyloid beta (AB) is visible in the Alzheimer’s sample (bottom row). The same is true for phosphyrlated Tau (pTau) in round 5. Credit Chung Lab/MIT Usage Restrictions with credit 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.