3t tim trio whole body mri scanner

Imaging was performed on a Siemens TIM Trio whole body 3T MRI scanner (Siemens Corporation, Erlangen, Germany) using a 12-channel phased array head coil. During the cognitive challenge tasks, 40 contiguous coronal slices were acquired from each participant, providing whole brain coverage (5 mm thick) and images were collected every 3 seconds using a single shot, gradient pulse echo sequence (TR = 3000 ms; TE = 30 ms, flip angle = 90°, with a 20 cm field of view and a 64 × 64 acquisition matrix; in plane resolution 3.125 × 3.125 × 3.125 mm). For the MSIT, a total of 132 images per slice were collected, while for the Stroop task, a total of 50 images per slice were collected in order to ensure comparability of tasks with previous studies [11 (link),32 (link)].

During scanning, 16 trials in each fixed emotion condition, 32 trials in each changing emotion condition, and 10 silence trials (186 trials in total, in two consecutive runs) were presented in pseudorandomized, miniblocked order at a comfortable listening level (at least 70 dB) binaurally via pneumatic headphones embedded in ear-defenders (Esys fMRI system, Invivo Corporation, Orlando, FL, USA). Participants were asked to listen to the sounds with their eyes lightly closed, with no output task. In-house software written in Python (http://www.python.org) was used to integrate stimulus delivery with the scanner controls.
Brain images were acquired on a 3T TIM Trio whole-body MRI scanner (Siemens Healthcare, Erlangen, Germany). Functional echoplanar images were obtained in a sparse-sampling protocol with 8-second interscan pauses during which auditory stimuli were delivered; a B0 field-map for subsequent inhomogeneity correction and a volumetric MPRAGE structural sequence were also acquired for each participant. Further details about image acquisition can be found in Supporting Information.