Thank you for participating in the IDEAS study which will help determine the value of amyloid PET scans of the brain. Now, we’d like you to join the Brain Health Registry (BHR) online.

The BHR is a free internet study led by researchers at the University of California, San Francisco. If you choose to join, you will be asked to answer questions about yourself and take online brain tests, which are like computer games. Participation is entirely online. All information entered in the Brain Health Registry is secure and privacy is protected.

As a BHR participant, you'll have the option to learn about additional research opportunities, such as clinical trials. And as a participant in both IDEAS and BHR, you have the unique opportunity to connect your data from both studies, which will help us learn more about changes in brain health over time.

Let's get started

Please fill out the form to the right, using the Study Code you received in your email invitation to join this study.

  • Don’t have a study code?
    • Your email invitation to join the study contains your study code. If you no longer have your Study Code, please email us at

  • Already a BHR participant?
    • You don’t need to register again. Instead, please click "I Already Have an Account", located in the top right of your screen.

  • Are you the caregiver or care partner for an IDEAS patient who received a PET scan?
  • You can participate too! Once the IDEAS participant joins BHR, he/she will have to opportunity to invite you to join the BHR Study Partner Portal. Then the two of you can work as a team to advance brain health research.

We respect your privacy. The information you share will be kept confidential.