Adolescent Brain Cognitive Development Study (ABCD) - Annual Release 1.1

The ABCD Curated Annual Release 1.1 includes high quality baseline data from the first ~4,500 research participants, including minimally processed brain image volumes and tabulated structural MRI, diffusion MRI, resting-state fMRI and task fMRI results, as well as all non-imaging assessment data from the genetics, physical & mental health, neurocognition, substance use, biospecimens and culture & environment domains. All personally identifiable information is removed from the data to ensure participant confidentiality and anonymity. For a detailed description of all the measures included in this release, download the Curated Annual Release 1.1 Summary document.