Magnetic resonance imaging acquisition
All data (structural and resting state functional MRI) were acquired on a Siemens 7 T scanner (Siemens Healthineers, Erlangen, Germany) in Magdeburg. Following the automated shimming, T1-weighted structural images were acquired using a magnetization–prepared rapid gradient–echo (MPRAGE) sequence with the following parameters: repetition time (TR) = 1700 ms, echo time (TE) = 2.54 ms, inversion time (TI) = 1050 ms, flip angle = 5°, 176 slices, field of view (FoV) = 256 mm, grappa acceleration factor PE = 2, bandwidth = 160 Hz/pixel, isotropic voxel size = 1 mm