3t intera mr scanner

Imaging was conducted with a Phillips 3T Intera MR scanner using a 32-channel SENSE head coil at the Spinoza Centre for Neuroimaging at the Amsterdam University Medical Center. A high-resolution T1-weighted structural scan was acquired first for each participant (T1 turbo field echo, TR 8.2 s, TE 3.8 ms, 220 slices, slice thickness 1 mm, voxel size 1x1x1 mm, FOV 240 x 188 mm, flip angle 8°). During the cue reactivity task, the blood oxygen dependent (BOLD) signal was measured with a T2*single shot echo planar imaging (EPI) sequence (TR 2.0 s, TE 27.63 ms, 37 slices, slice thickness 3 mm, voxel size 3x3x3 mm, interslice gap .3 mm, FOV 240 x 240 mm, flip angle 76.1°). Neuroimaging preprocessing was performed using fMRIPrep 1.3.2^{30 (link)} which is based on Nipype 1.1.9.^{40 (link),41 (link)} See Supplement 1 for more detailed preprocessing information.

The study was carried out on a Philips 3T Intera MR-scanner. The main experiment was performed with a synergy SENSE 8-channel head coil, the control experiment with a 32-channel head coil. Functional images were acquired parallel to the bi-commissural plane using a T2*-weighted single-shot echo-planar sequence with TR = 2.0 s, TE = 28 ms, and 39 axial slices 3.5 mm thick (with no gap) covering the whole brain (flip angle 70 degrees, FOV 224 x 136.5 x 224 mm, Reconstructed Matrix size 64 x 64, isometric 3.5 mm voxels). A T1-weighted anatomical image consisting of 160 slices 1mm-thick was acquired at the beginning of the experiment for normalization purpose, and to visualize the activity at the individual level (TR 7.6 ms, TE 3.5 ms, flip angle 8 degrees, FOV 224 x 160 x 256 mm, Reconstructed Matrix size 256 x 256, isometric 1 mm voxels).