Twenty healthy adult subjects (10 males, 10 females; 24.5 ± 3.3 years of age) participated in this study. All subjects provided informed consent, and the experimental protocols were approved by the Auburn University Institutional Review Board. High resolution resting state fMRI data was obtained from twenty healthy individuals using an EPI sequence with the following parameters: 37 slices acquired parallel to the AC–PC line, 0.85 mm × 0.85 mm × 1.5 mm voxels, TR/TE: 3,000/28 ms, 70º flip angle, base/phase resolution 234/100, A → P phase encode direction, iPAT GRAPPA acceleration factor = 3, interleaved acquisition, 100 timepoints. Data were acquired on a Siemens 7 T MAGNETOM outfitted with a 32-channel head coil by Nova Medical (Wilmington, MA). During resting state, the subjects were instructed to keep their head as still as possible, keep their eye open and let their mind wander and not think about anything specific.
