ABCD Fast Track Data

The ABCD fast-track data release contains unprocessed neuroimaging data from ABCD Study participants to date, as well as basic participant demographics (age, sex), including:

  • High-resolution structural data (3D T1 - and T2 - weighted scans)
  • Advanced diffusion MRI (multiple b-values and directions)
  • Resting State fMRI
  • Task fMRI (Monetary Incentive Delay, Stop-Signal), and Emotional N-Back), along with raw E-Prime task files for each fMRI run

Neuroimaging data are collected using a harmonized Human Connectome protocol, developed for the ABCD Study, and supported across all three major MRI scanner platforms (Siemens, General Electric, and Philips). Fast track data are in DICOM format as provided by the MRI scanners and have not undergone quality control or curation. As such, these data are most suitable for technical methods development, as the DICOM images would require pre-processing (e.g., distortion correction, movement correction, alignment) to be suitable for data analysis. Researchers intending to use Fast Track data should take note of the appropriate Acknowledgement language to include in any public disclosure of results.

ABCD Fast Track Data are potentially dynamic data sets released on an ongoing basis.  These data are available in the ABCD Collection. A researcher who wishes to use Fast Track Data must define an NDA Study to identify the raw data cases they've used, which is assigned a DOI. If any records in Fast Track Data are corrected, this change is applied to the original data set and documented in a Fast Track change report. The illustrations below provide an explanation of the data and how it might be changed post-release. Visit this page for updates concerning Fast Track Data.