Data Sharing

NIMH Data Archive Data Use Certification

Preparing a manuscript? Click here for important reminders about the ABCD data use terms & conditions.

News & Upcoming Events

ABCD Science Newsletter

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November 2020
July 2020
May 2020
January 2020

October 2019

ABCD – ReproNim Virtual Course October–March, 2021

The ABCD-ReproNim Course provides a comprehensive background to data from the ABCD Study® while delivering hands-on, interactive instruction to enable rigorous and reproducible data analyses (see attached flyer). The course runs from October–March and is targeted to students, postdocs, and early career faculty. Visit the ABCD-ReproNim website for more information and to apply.

Archived News and Events

Please click here to view archived news and events.

Data Releases

ABCD COVID-19 supplemental data release is now available on the NIMH Data Archive (NDA)

The ABCD COVID-19 data release consists of survey responses from ABCD families about the impact of the pandemic on their lives. Surveys were sent electronically to all ABCD participants and their parent/guardian in May, June, August, October and December of 2020. Data from the first three surveys constitute this data release. Youth and parents/guardians were asked separately about school attendance and activities, sleep, daily routines, physical activity, mental health, screen time, racism/discrimination in relation to COVID-19, COVID attitudes and practices, and coping behaviors. Importantly, researchers will be able to link data from these surveys to data from the main ABCD study visits, including those that occurred prior to the pandemic. Future releases will include data from subsequent surveys. Visit the NDA website for more information.

ABCD Data Release 3.0 available now on the NIMH Data Archive!

The third annual curated ABCD Data Release 3.0 is available now on the NIMH Data Archive. In addition to baseline data on the full participant cohort (nearly 12,000 participants), Data Release 3.0 contains early longitudinal data, including approximately half of the 2-year follow-up neuroimaging data (second imaging timepoint), as well as follow-up phenotypic data for the 6-month and 1-year visits on the full cohort. Interim data are also available for the 18-month, 2-year, and 30-month visits (see Table below). Smokescreen genotyping array data with TOPMed imputations are available as well. These include common variations, as well as variations associated with addiction, smoking behavior and nicotine metabolism. Authorized users can obtain more information and access the updated data from Full details are in the Release Notes for Data Release 3.0.

Researchers new to the NIMH Data Archive system interested in gaining access to the data can create an account here and follow the instructions to request access. Returning researchers can log into their account using the Login button.

ABCD Data Release Schedule

Click here to view schematics of the Data Release Schedule.
Curated data are released annually via the NIMH Data Archive. Each release contains data on the full participant cohort. For more information about the types of data collected, please visit the Protocols page.

R Data Source file now available on the NIMH Data Archive

The purpose of the RDS file is for the implementation of the Data Exploration and Analysis Portal (DEAP) for the most current release of ABCD Study data. The RDS file is accessible via the ABCD page on the NIMH Data Archive.

About Curated Data

Curated data will be released annually through the NIMH Data Archive, beginning in 2018 with an interim release that includes high quality baseline data from the first ~4500 participants. Click here to view what the baseline data includes.

Fast-track Imaging Data Release

The ABCD Study, in partnership with the NIMH Data Archive (NIDA), releases fast-track unprocessed neuroimaging data and basic participant demographics. Click here for more information.

Archived Data Releases

Please click here to view archived data releases.

Data Opportunities

Announcing a special issue at Developmental Cognitive Neuroscience for the ABCD Study

Call for papers for a DCN Special Issue on ABCD studies

Adolescent Brain Cognitive Development Study: Longitudinal Methods, Developmental Findings, and Associations with Environmental Risk Factors

Guest Editors: Monica Luciana, Deanna Barch, Megan Herting

This special issue of Developmental Cognitive Neuroscience is focused on the Adolescent Brain Cognitive Development (ABCD) study. The ABCD Consortium study includes 21 data collection sites that have successfully enrolled and are following nearly 12,000 adolescents and their families using a comprehensive neurobehavioral and MRI-based neuroimaging battery. The data have been made available to the scientific community through the NIMH Data Archive. As of this writing, the project’s baseline and year 1 follow-up data have been released. ABCD Data Release 3.0, which includes a portion of the 2-year follow-up data, will be available later this fall. The goal of this issue is to update the field on the study’s longitudinal measures, best practices for the analysis of longitudinal data, and emerging findings. We are particularly interested in empirical papers that use best practices to establish robustness and replicability, take advantage of the longitudinal nature of the data, and integrate findings across measurement domains. This issue will be focused on papers that present new information on psychometrics or validity of measures, best practices for analytic approaches, and/or novel neurodevelopmental findings in accord with the mission of the journal. In keeping with the mission of the journal, papers should address, either through methodology or discussion, relevance to the field’s understanding of neurodevelopment.

Submission instructions

The Developmental Cognitive Neuroscience’s submission system will be open for submissions to our Special Issue from 01 Feb 2021. When submitting your manuscript please select the article type “VSI: ABCD Longitudinal methods”. Please submit your manuscript before 31 Mar 2021.

All submissions deemed suitable to be sent for peer review will be reviewed by at least two independent reviewers. Once your manuscript is accepted, it will go into production and will be simultaneously published in the current regular issue and pulled into the online Special Issue. Articles from this Special Issue will appear in different regular issues of the journal, though they will be clearly marked and branded as Special Issue articles. 

Announcing a Registered Reports special issue at Cortex for the ABCD Study!

Cortex has partnered with the ABCD Study with a special call for Stage 1 Registered Reports proposing analysis plans of the upcoming 2020 data release. Click here for more information.

DCAN Labs ABCD-BIDS MRI pipeline inputs and derivatives 

The data collection from the Developmental Cognition and Neuroimaging (DCAN) Labs contains a regularly updated dataset of ABCD Brain Imaging Data Structure (BIDS) version 1.2.0 pipeline inputs and derivatives. Source data are currently comprised of all the ABCD Study participants baseline DICOM imaging data that passed initial acquisition quality control and were processed by DCAN Labs. The input DICOM data to this BIDS version 1.2.0 data collection were retrieved from the NIMH Data Archive (NDA) share of ABCD fast-track data and were last accessed on May 1, 2019. BIDS input data were converted from DICOMs using ABCD Dcm2Bids. BIDS derivatives data were derived from the DCAN Labs ABCD-BIDS MRI processing pipeline which ou(https:/nda.nih.gtputs Human Connectome Project (HCP) Minimal Preprocessing Pipelines-style data in both volume and surface spaces. The collection is here.

NIH funding opportunity announcements for secondary analysis of ABCD Study data

NIH funding opportunity announcements for secondary analysis of ABCD Study data, “Accelerating the Pace of Child Health Research Using Existing Data from the Adolescent Brain Cognitive Development (ABCD) Study (R01 and R21)”, have been published. Visit NIDA Program Announcements for more information.

Data Exploration and Analysis Portal (DEAP) available now on the NIMH Data Archive

Authorized users now have access to the ABCD Data Exploration and Analysis Portal (DEAP) via the NIMH Data Archive to facilitate analysis of ABCD Study data. The DEAP allows users to analyze ABCD Study data online, while providing appropriate statistical models and tools that take advantage of the study design.

ABCD Study data analysis codes available now on the GitHub development site

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

ABCD Study genetic correlation cortical surface maps are now available

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

Archived Data Opportunities

Please click here to view archived data opportunities.

ABCD Study Methods Publications

ABCD Study investigators have published papers describing the study’s design and analysis plans.

Click here to download a manuscript describing the neuroimage processing pipeline used for ABCD Data Release 1.1. This article has been made available as a preprint on bioRxiv for investigators to reference the methods without having to wait for peer review and final publication.

Click here to access a special issue of Developmental Cognitive Neuroscience dedicated to the study’s rationale, aims, and assessment strategies.