Awake Time Series

A cohort of 63 healthy subjects participated in the original experiment (36 females, mean ± SD age of 23.4 ± 3.3 years). Written informed consent was obtained from all subjects. The experimental protocol was approved by the local ethics committee (Goethe-Universität Frankfurt, Germany, protocol number: 305/07). The subjects were reimbursed for their participation. All experiments were conducted in accordance with the relevant guidelines and regulations, and the Declaration of Helsinki. Participants were scanned for 50 minutes using previously published acquisition parameters26. From the group of 63 subjects we selected a subgroup of 9 participants who remained awake throughout the complete duration of the scan (confirmed by assessment of the simultaneous EEG64). In this way, we obtained unusually long fMRI recordings with the purpose of robustly estimating observables related to FC dynamics