Resting-State fMRI Protocol for HCP

Structural (T1 and T2 images, required for preprocessing functional neuroimaging data) and functional MRI data were collected at Washington University on the Siemens 3 T Connectome Skyra scanner using a multi-band sequence. The structural images were 0.7 mm isotropic. The rs-fMRI data were 2 mm isotropic with TR = 0.72 s. Full details of the acquisition parameters for the HCP data can be found elsewhere^{73 (link)}. Two sessions of rs-fMRI data were collected on consecutive days for each subject, and each session consisted of one or two runs. The length of each rs-fMRI scan was 14.4 min (1200 frames). Here, the analyses were restricted to individuals for whom the left–right phase-encoding scans for the rs-fMRI session were completed and available. For rs-fMRI data acquisition, participants were asked to lie with eyes open, with a “relaxed” fixation on a white cross (on a dark background), think of nothing in particular, and not fall asleep. Details of the data collection can be found elsewhere^{74 (link)}. Details about behavioral measures including PSQI can be found in HCP S1200 Data Dictionary(https://db.humanconnectome.org/data/projects/HCP_1200) and^{75 (link)}.