Data acquisition and analysis
CORTEX
Acquisition of brain images was conducted using a 3 Tesla MRI scanner (PRISMA, Siemens Medical Systems, Erlangen, Germany) with a 64-channel head coil at the Berlin Center for Advanced Neuroimaging (BCAN). An anatomical brain image was acquired with a 3D T1-weighted scan (Magnetization Prepared Rapid Acquisition Gradient Echo sequence, TE = 3.03 ms, TR = 2.3 s, 192 slices and FOV = 256 × 256 × 192 mm). ASL data was acquired using a multi-post labeling delay pseudo continuous [From the preprocessed ASL images, mean CBF scores were extracted from the following three prespecified bilateral regions of interest (ROIs): inferior frontal gyrus (IFG), dorsolateral prefrontal cortex (DLPFC), and anterior cingulate cortex (ACC). See Fig. 