Participants were instructed to remain still with eyes open while 2 EPI runs (voxel size = 3×3×3mm, TR = 3000ms, TE = 30ms, scan time per run = 360s) were acquired on a Siemens 3T TIM Trio. Two MPRAGEs (voxel size = 1×1×1mm, T1 = 1000ms, TR = 2530s, TE = 3.32ms) were acquired and averaged to create a single high contrast-to-noise image.