as distortions and signal dropouts), as well as the effects of mechanical vibrations, which elevate Nyquist ghosting levels. In addition, a magnetization-prepared rapid gradient-echo (MPRAGE) high-resolution three-dimensional T1-weighted structural image was also collected to be used as an anatomical reference for the fMRI data and for the non-linear registration of imaging data between subjects. The sequence parameters for the MPRAGE were: TR = 2500 ms; TE = 3.5 ms; Inverse Time (TI) = 1200 ms; flip angle = 8°; voxel size = 1 × 1 × 1 mm3; matrix size = 256 × 256 × 192; FOV = 256 mm; and number of averages = 1.
