Fig. 1.
a) Dual-mode (bbNIRS and EEG) head probe setup, showing 2 separate channels with 2 sets of fiber bundles that were connected to (b) the 2-channel bbNIRS. While an EEG cap on the head is observable, the EEG data are not the topic/subject of this paper. The bbNIRS datasets used for this study were taken during 7-min eyes-closed conditions with the setup shown.