Please note: No shared data is currently available in ABCD.

ABCD was established to store and share data generated by investigators as part of the ABCD initiative.

The NIH seeks to encourage the use of these resources to achieve rapid scientific progress. In order to take full advantage of such resources and maximize their research value, it is important that data be made available, on appropriate terms and conditions, to the largest number of qualified investigators in a timely manner.


The ABCD Study is a landmark research initiative and part of the National Institutes of Health (NIH) partnership Collaborative Research on Addiction at NIH (CRAN). Investigators will measure brain maturation in the context of social, emotional, and cognitive development, as well as a variety of health outcomes. For more information on the ABCD study, please visit the ABCD Study page. ABCD study logo