The DFA task and two resting EEG sessions were completed each visit, on 4 separate days with no fewer than 24 hours between visits, and with all 4 visits completed within a 14 day period (such that the fourth day is not more than 14 days after the first day)1. Participants were seated in a sound-attenuated room, separate from the experimenter. Resting EEG was recorded for eight one-minute baselines, in blocks including periods of eyes-open (O) and eyes-closed (C), in one of two counterbalanced orders (OCCOCOOC or COOCOCCO) for 8 minutes per block.