Magnetom tim trio 3 tesla scanner

MRI data were acquired using a Siemens Magnetom TIM Trio 3 Tesla scanner and 32-channel head-coil. Sagittal T1-weighted anatomical images were acquired using a MPRAGE sequence (TR = 1,900 ms; TE = 2.32 ms; inversion time = 900 ms; flip angle = 9°; sagittal slice thickness = 0.9 mm; in-plane = 0.449 × 0.449 mm; matrix = 512 × 512; field-of-view = 230 × 230). To enhance resolution, a multi-band sequence was used to collect a total of 286 oblique-axial echo planar imaging (EPI) volumes during the faces/places task (multiband acceleration = 6; TR = 1,000 ms; TE = 39.4 ms; flip angle = 36.4°; slice thickness = 2.2 mm, number of slices = 60; in-plane resolution = 2.1875 × 2.1875 mm; matrix = 96 × 96). Images were collected in the oblique axial plane (approximately −20° relative to the AC-PC plane) to minimize susceptibility artifacts. To enable fieldmap correction, two oblique-axial spin echo (SE) images were collected in each of two opposing phase-encoding directions (rostral-to-caudal and caudal-to-rostral) at the same location and resolution as the functional volumes (i.e., co-planar; TR = 7,220 ms; TE = 73 ms).

Structural MRI images were acquired using a Siemens Magnetom Tim Trio 3 Tesla scanner (Siemens AG, Erlangen, Germany) with a 32‐channel head coil at the Murdoch Children's Research Institute (Royal Children's Hospital, Victoria, Australia). High‐resolution T₁‐weighted images were taken (192 slices, 0.9‐mm slice thickness, 0.8‐mm in‐plane resolution, TE = 2.59 msec, TR = 1900 msec, flip angle = 9°).