Participants were recruited and participated between April 2011 and April 2019. A total of 86 participants were included in this portion of the study, including 21 SZ, 26 GHR, and 39 HC. At baseline, the mean age was 25.93 (7.65) years, aged 13–45 years. There were no significant differences in age among the SZ, GHR, and HC groups; however significant differences were observed in sex (χ2 = 12.82, p = 0.002). All participants underwent clinical and resting state functional MRI (R-fMRI) assessment at baseline and follow-up at least 10 months after initial scan (ranged 11–67 months). The mean duration between baseline and follow-up scans was 26.16 (14.28) months. Diagnoses were confirmed again at follow-up (using SCID or K-SADS-PL) with no diagnostic change for any participants.
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