montage_file_path = 'Z:/qingzhu/EEG_raw/SEED-VII/src/channel_62_pos.locs' ...

EEG signals were acquired using the OpenBCI headset ... These maps display the distribution of the brain activity across the scalp recorded from eight electrodes (O1, O2, Pz, C3, Cz, C4, Fp1, Fp2) ...