Data were acquired on a 3T Siemens Magnetom Trio MR Scanner (Siemens AG, Erlangen, Germany). GE EPI fMRI BOLD was recorded with 26 transversal slices; 3.0 × 3.0 in-plane and 4 mm slice thickness; TR/TE = 1600/35 ms, FA 90°; FoV = 240 × 240 mm; matrix = 92 × 92, 400 volumes acquired in 10 min 40 s. A structural T1-weighted MPRAGE was recorded with 176 sagittal slices, 0.9 × 0.9 in-plane and 1 mm slice thickness, TR/TE = 1900/2.57 ms; FoV = 230 × 230 mm; matrix = 256 × 256.
Preprocessing of fMRI data involved motion-realignment, linear drift correction (detrending), regression of motion (six motion parameters and first derivatives; Power et al., 2014 (link)) and physiological noise (WM and CSF signal fluctuations extracted from T1 image based tissue probability masks from SPM Dartel segmentation; Chang and Glover, 2009 (link); Birn et al., 2014 (link)) followed by co-registration of functional to individual structural images and normalization to MNI standard space and final smoothing with a Gaussian Kernel (FWHM 6 mm).
Preprocessing of fMRI data involved motion-realignment, linear drift correction (detrending), regression of motion (six motion parameters and first derivatives; Power et al., 2014 (link)) and physiological noise (WM and CSF signal fluctuations extracted from T1 image based tissue probability masks from SPM Dartel segmentation; Chang and Glover, 2009 (link); Birn et al., 2014 (link)) followed by co-registration of functional to individual structural images and normalization to MNI standard space and final smoothing with a Gaussian Kernel (FWHM 6 mm).
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