Resting EEG was recorded for four minutes in all participants as they were resting on a comfortable chair in a dimly lit, sound-attenuated RF-shielded booth (Industrial Acoustics, Inc., Bronx, NY, USA). A 64-channel electrode cap (Electro-Cap International, Inc., Eaton, OH, USA) based on the extended 10–20 System 29, 30 was used. Participants were asked to stay awake with eyes closed and not to move. EEG recording and preprocessing procedures are described in Supplementary Materials.
