AABC Release 1 includes cross-sectional (V1) and longitudinal (V2, V3) 3T MR scans and non-imaging data from 1248 healthy older adults (ages 36-90+) in the HCP-Aging (HCA) and Aging Adult Brain Connectome (AABC) projects.
It includes multi-modal preprocessed and unprocessed imaging data (structural, high-res hippocampal T2 [unprocessed only], resting state fMRI, task fMRI, diffusion, and ASL) on 1248 participants in 2214 imaging visits (many subjects have data for more than one visit, 36+ TB of data). It includes non-imaging data collected over a broad range of domains for 1248 V1, 762 V2, and 236 V3 (2246 total) in-person visits and in remote follow up surveys (non-imaging events). Session breakdowns by study and visit/event are available here.
What’s new in AABC Release 1?
Get Access and Download the data: Get started by Registering for BALSA and agreeing to the AABC Data Use Terms. An academic, non-profit, or government email address is required for agreement to the AABC Data Use Terms and accessing the data.
To download imaging data, you must 1) install Aspera Connect (scroll down to “IBM Aspera client-deployed software” to find Aspera Connect download links) and 2) an Aspera Connect plugin for your browser (available from Firefox, Chrome, Safari, etc.).
Set Preferences>Transfers in Aspera Connect to a directory with sufficient space for large downloads.
To download the full non-imaging data, click the Files tab and Download under AABC_Release1_Non-imaging_Data-XL.csv. Use the Column Selector and Export CSV to view, filter on, and download all or subsets of Core Variables for selected subjects.
Want more information? Check out our updated documentation to help with understanding the file structure and interpreting the data.
View Data Release Documentation
Release Date: Oct 27, 2025
Lifespan HCP Release 2.0 includes cross-sectional visit 1 (V1) preprocessed structural and functional imaging data, unprocessed V1 imaging data for all included modalities (structural, high-res hippocampal T2, resting state fMRI, task fMRI, diffusion, and ASL), and non-imaging demographic and behavioral assessment data from 725 HCP-Aging (HCP-A, ages 36-100+) healthy participants (22+ TB of data).
What’s new in the Lifespan 2.0 release?
Get Access and Download the data: Get started with the Data Access and Download Instructions for navigating NDA and using it's download tools. We've also created a wiki that details setup for downloading data via NDA's command line tools.
Want more information? Check out our updated documentation to help with understanding the file structure and interpreting the data.
View Data Release Documentation
Release Date: Feb 26, 2021
Lifespan HCP Release 1.0 Data includes unprocessed data of all modalities (structural MRI, resting state fMRI, task fMRI, and diffusion MRI) for 600+ subjects each from HCP-A and HCP-D and minimally preprocessed structural MRI data (only) for 129 HCP-A and 84 HCP-D subjects, respectively.
Data is available in the NIMH Data Archive. Read HCP Data Access Instructions for step-by-step instructions on obtaining the data. If you are new to the NDA, see below instructions. If you don't currently have an account on the NDA, start the process by creating an NDA account.
See our documentation for full access instructions.
View Data Release Documentation
Release Date: May 21, 2019