Table 1.
Experiment | Participants | Number of conditions | Condition duration (seconds) | Number of repetitions per run (or run set) | Number of runs (or run sets) | Scanner | Voxel size (mm) | TR (seconds) | TE (ms) | Flip angle (deg) | Volume dimensions | Number of volumes per run | Total number of runs | Data split |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 1–3 | 69 | 3 | 1 | 4 | 3T1 | 2.5 | 1.323751 | 29.7 | 71 | 64 × 64 × 21 | 270 | 8 | even/odd |
2 | 4–6 | 75 | 3.5 | 1 | 4 | CNI | 2 | 2.006553 | 31 | 77 | 80 × 80 × 26 | 136 | 12 | even/odd |
3 | 7–11 | 32 | 4 | 2 | 10 | NIL | 2.5 | 2 | 30 | 77 | 80 × 80 × 28 | 156 | 10 | even/odd |
4 | 12–31 | 72 | 1 | 1 | 18 (9 per session) | CBU | 3 × 3 × 3.75 | 2 | 30 | 78 | 64 × 64 × 32 | 216 | 18 | by session |
3T1 = Lucas Center at Stanford University, 3T GE Signa HDX scanner, Nova quadrature or 8-channel RF coil; CNI = Stanford Center for Neurobiological Imaging, 3T GE Signa MR750 scanner, Nova 16-channel RF coil; NIL = Neuroimaging Laboratory at Washington University, 3T Siemens Skyra scanner, Siemens 32-channel RF coil; CBU = Medical Research Council–Cognition and Brain Sciences Unit, 3T Siemens Trio scanner, Siemens 12-channel RF coil. Additional notes: All experiments used a T2*-weighted, single-shot, gradient-echo pulse sequence, either spiral-trajectory (3T1) or echo-planar imaging (CNI, NIL, CBU).