Data acquisition protocol were harmonized for three 3T scanner platforms (Siemens Prisma, General Electric 750 and Philips), used across the 21 data acquisition sites. Scanning sessions occurred across 1 or 2 sessions. The image analysis methods included the following: head motion corrected by registering each frame to the first using AFNI's 3dvolreg; \(B_0\) distortions were corrected using the reversing gradient methods (Holland et al., 2010); displacement field estimated from spin-echo field map scans were applied to gradient - echo images after ajdustment for between-scan head motion; correction for gradient non-linearity distortions; between scan motion correction across all fMRI scans; registration between \(T_2\)-weights, spin-echo \(B_0\) calibration scans and \(T_1\)-weighted structural images performed using mutual information.