Imaging was conducted on a Siemens 3T Trio whole-body scanner (Siemens AG, Erlangen, Germany), using an 8-channel array coil. At the beginning of the first scanning session, high-resolution T1-weighted anatomical images were obtained using an MPRAGE sequence (TR = 1,620 ms, TI = 950 ms, TE = 3 ms, flip angle = 15°, 160 contiguous slices of 1.0 mm thickness, in-plane resolution 1 mm × 1 mm) while the subject performed training trials of the BART. Conventional BOLD images were acquired using a standard echo-planar imaging sequence (TR = 1,500 ms, TE = 30 ms, flip angle = 90°, 25 interleaved axial slices with 5 mm thickness, in-plane resolution 3.44 mm × 3.44 mm), identical to Rao et al. [2008] (link). ASL images were acquired using a pseudo-continuous ASL sequence based on gradient-echo echoplanar imaging [Chen et al., 2011 (link); Dai et al., 2008 (link); Wu et al., 2007 (link)] with the following parameters: TR = 4 s, TE = 17 ms, flip angle = 90°, FOV = 22 cm, matrix = 64 × 64, labeling time = 1.5 s, postlabeling delay = 1.2 s, 18 axial slices with 6 mm thickness and 1.2 mm gap, in-plane resolution 3.44 mm × 3.44 mm.