Are you interested in dementia and how the brain changes with age? You may be eligible to participate in our study!

The Calibration of Cognitive Assessment and Dementia Diagnosis across Diverse Cohorts in the United States and South Africa (DeCal) study is underway at the Harvard Pop Center, and we are looking for participants.

This pilot study measures thinking, memory, and other cognitive skills (measured by completing common neuropsychological tests) of older adults in the United States, and then compares their performance against the test results of older adults in South Africa. Ultimately, we hope to better understand risk and resilience factors associated with cognitive aging in different parts of the world.

Are you (or someone you know) at least 60 years old, a native English speaker, living in the Boston area, and able to nominate a friend or family member as a study partner? You may be eligible to participate in this study and be compensated $50 for a completed study visit! Participation consists of a series of tablet-and paper-based cognitive tasks and tests of sensory function during a 2-hour interview, generally administered at the Harvard Center for Population and Development Studies in Cambridge, MA (in certain cases, we may be able to come to you). You will also need a study partner to answer questions about you via an online survey.

If you are interested in participating, please complete the eligibility form below, or for more information, please contact or call 617-496-4060.

This study is conducted by the Center for Population and Development Studies, under the Harvard T.H. Chan School of Public Health and in collaboration with the Boston University Alzheimer’s Disease Center.