12 channel radio frequency coil

Data we used in this study consists of resting-state scans of 405 healthy subjects of which 200 are female. The age of subjects ranges from 12 to 35 years with the mean of 21 years. Same fMRI scanner device was used to capture resting-state fMRI scans of all subjects. The scanner was a 3-T Siemens Trio with a 12-channel radio frequency coil and it was used to acquire
$T_2^{\ast }$ -weighted functional images using a gradient-echo EPI sequence with TE = 29 ms, TR = 2 s, flip angle = 75°, slice thickness = 3.5 mm and gap = 1.05 mm, FOV = 240 mm, matrix size = 64×64, voxel size = 3.75 mm × 3.75 mm × 4.55 mm.
Subjects had their eyes open and were instructed to fixate on a foveally presented cross. Informed consent was obtained according to institutional guidelines at the University of New Mexico.
After the scan, the first four (Brenon et al.) image volumes were removed to avoid T1 equilibration effects followed by realignment, slice-timing correction, spatial normalization, reslicing to 3 × 3 × 3 mm³ voxels, and spatial Gaussian smoothing (FWHM = 5 mm).

All MRI data were gathered at the Mind Research Network (MRN; Albuquerque, NM) using a Siemens Trio 3-Tesla scanner with a 12-channel radio frequency coil. Structural T1-weighted MR images were obtained with a multiecho 3D MPRAGE sequence [FOV=256mm × 256mm, matrix=256 × 256, TE=1.64, 3.5, 5.36, 7.22, 9.08 ms, TR=2530ms, TI=1200 ms, flip angle=7°, number of excitations=1, slice thickness=1mm, and 192 slices]. Depending on the sample, functional T2*-weighted MRI images were obtained during a 5- or 5.5-minute resting state scan with a gradient-echo EPI sequence [FOV=240mm × 240mm, matrix=64 × 64, voxel size=3.75mm × 3.75mm × 4.55mm, TR=2000ms, TE=29ms, flip angle=75°, slice thickness=3.55 mm, slice gap=1.05 mm]. Only the first 300 timepoints (5 minutes) of each participant’s functional scan were used for subsequent data processing and analyses.

MRI was performed on a 3T Siemens Trio (Erlangen, Germany) whole body scanner with a 12-channel radio frequency coil. A high-resolution T₁-weighted structural image was acquired with a 5-echo multi-echo MPRAGE sequence with TE = 1.64, 3.50, 5.36, 7.22, and 9.08 ms, TR = 2.53 s, TI = 1.20 s, flip angle = 7°, NEX = 1, slice thickness = 1 mm, 33 slices, FOV = 256 × 256 mm, resolution = 256 × 256 × 176, voxel size = 1 × 1 × 1 mm, and pixel bandwidth = 650 Hz.