Data Sharing

The release includes new summary scores, as well as data and metadata fixes. Please see the 6.1 data release notes for more information.

Available Now! We are excited to announce the launch of the NIH Brain Development Cohorts (NBDC) Data Hub. This new data ecosystem will host and facilitate access to data from both the Adolescent Brain Cognitive Development^SM (ABCD) Study and the HEALthy Brain and Child Development (HBCD) Study.

The NBDC Data Hub will offer a range of functionalities:

• Scalable Data Integration: Seamlessly manage large volumes of data, including neuroimaging and genomics data
• Customized Query Tools: Easily navigate data dictionaries to find the variables you need for your research goals
• Streamlined Data Use Certification (DUC) Workflows: Choose individual or investigator-led group DUC. Visit the NBDC Data Hub to learn more and start your DUC application: https://www.nbdc-datahub.org/. Researchers with an active DUC from the NIMH Data Archive will need to obtain a new DUC via the NBDC Data Hub.
• Responsible Use Training: Complete training on responsible data and biospecimen use prior to data access approval

ABCD data users: The ABCD 6.0 data release includes cumulative data from baseline through the six-year follow-up visit, with data from about 75% of participants at that timepoint. For detailed information about the ABCD Study®, please visit the ABCD Study website: https://abcdstudy.org. New with the 6.0 release:

• All summary scores for tabulated data have been recomputed and a link to a companion R package will be provided on the ABCD documentation
• Two new tables will be shared containing general participant information that may change over time (dynamic variables, e.g., cohort descriptions) as well as visit-specific information (static variables, e.g., visit date/time)
• Neuroimaging:
  • Brain Imaging Data Structure (BIDS) – formatted raw data
  • Concatenated resting-state and task-based data
  • ABCD Community Collection (ABCC) BIDS derivatives data

HBCD data users: The inaugural HBCD data release will include data from over 1400 pregnant participants during the prenatal period. For about half of these participants, follow-up data from their babies will also be included. For more information about the HBCD Study, please visit https://hbcdstudy.org. Included in the inaugural release:

• Data domains encompassing prenatal health, pregnancy exposures including substance use, social and environmental determinants of health, infant brain imaging and activity, cognition and behavior, physical growth, and wearable biosensors
• Raw and derived brain imaging, EEG, and motion (actigraphy) data using the BIDS standard for data organization

Questions? Email: NDBC@mail.nih.gov

As of June 2, 2025, The NIMH Data Archive is no longer accepting new or renewal data access requests for ABCD Study data. Renewal requests submitted on or before June 2 will be processed. You may continue to access data from the 5.1 data release until your DUC expires.

Click here for full baseline data demographics (n = 11,878 participants; 48% female; 52% male)

Please click here to view archived data releases.

Please click here to view archived news and events.

NICHD, along with several other ICs, have issued notices of funding opportunities on measuring brain changes across long timespans. You can view the requests for application here and here.

NIDA has issued two secondary data analysis funding opportunity announcements focused on substance use trajectories and risk and resilience of substance use disorder. You can review the Requests for Application here and here.

NIMH, along with NIAAA, NIEHS and the NIH Office of Research on Women’s Health, have issued funding opportunity announcements for ABCD secondary data analysis. Note that these are reissues of PAR-19-162 and PAR-19-163. You can review them here and here.

Click here to view the ABCD Study data analysis codes on the GitHub development site!

Click here to view the ABCD Study data analysis codes on the GitHub development site!

Fuzzy clusters derived from genetic correlation of cortical areas will be provided on request. Click here to view associated documentation.

Please click here to view archived data opportunities.

Provides comprehensive documentation for the Data Exploration and Analysis Portal (DEAP), including guidance on using the interactive data dictionary, creating and editing custom and pre-assembled datasets, organizing and managing data, downloading datasets in multiple formats, and exploring variables and metadata.

Available Now! We are excited to announce the launch of the NIH Brain Development Cohorts (NBDC) Data Hub. This new data ecosystem will host and facilitate access to data from both the Adolescent Brain Cognitive Development^SM (ABCD) Study and the HEALthy Brain and Child Development (HBCD) Study.

The NBDC Data Hub will offer a range of functionalities:

The NBDC Data Hub will offer a range of functionalities:

• Scalable Data Integration: Seamlessly manage large volumes of data, including neuroimaging and genomics data
• Customized Query Tools: Easily navigate data dictionaries to find the variables you need for your research goals
• Streamlined Data Use Certification (DUC) Workflows: Choose individual or investigator-led group DUC. Visit the NBDC Data Hub to learn more and start your DUC application: https://www.nbdc-datahub.org/. Researchers with an active DUC from the NIMH Data Archive will need to obtain a new DUC via the NBDC Data Hub.
• Responsible Use Training: Complete training on responsible data and biospecimen use prior to data access approval

ABCD data users: The ABCD 6.0 data release includes cumulative data from baseline through the six-year follow-up visit, with data from about 75% of participants at that timepoint. For detailed information about the ABCD Study®, please visit the ABCD Study website: https://abcdstudy.org. New with the 6.0 release:

• All summary scores for tabulated data have been recomputed and a link to a companion R package will be provided on the ABCD documentation
• Two new tables will be shared containing general participant information that may change over time (dynamic variables, e.g., cohort descriptions) as well as visit-specific information (static variables, e.g., visit date/time)
• Neuroimaging:
  • Brain Imaging Data Structure (BIDS) – formatted raw data
  • Concatenated resting-state and task-based data
  • ABCD Community Collection (ABCC) BIDS derivatives data

HBCD data users: The inaugural HBCD data release will include data from over 1400 pregnant participants during the prenatal period. For about half of these participants, follow-up data from their babies will also be included. For more information about the HBCD Study, please visit https://hbcdstudy.org. Included in the inaugural release:

• Data domains encompassing prenatal health, pregnancy exposures including substance use, social and environmental determinants of health, infant brain imaging and activity, cognition and behavior, physical growth, and wearable biosensors
• Raw and derived brain imaging, EEG, and motion (actigraphy) data using the BIDS standard for data organization

Questions? Email: NDBC@mail.nih.gov

Learn how to query ABCD data ontologies and create datasets using DEAP in this interactive demo.

Are you interested in using the cloud for research but not ready to make a long-term commitment? Make sure you check out NIH Cloud Lab, a new 90-day program that enables NIH-affiliated* researchers to explore the cloud at no cost in a secure, NIH-approved environment. Participants can sign up at any time and receive an account with $500 of Amazon Web Services, Google Cloud, or Microsoft Azure credits, access to curated bioinformatics tutorials, and support from NIH technical and bioinformatics experts. The program is open to all NIH-affiliated researchers and all NIH staff. Browse the Cloud Lab homepage to learn more and reach out to cloudlab@nih.gov if you have any questions.