| Artifact | Cause | Fix | |----------|-------|-----| | | Mains interference | Enable notch filter; use shielded cables | | Muscle noise | EMG from jaw/neck | Instruct subject to relax; high-pass >10 Hz | | Blink (EOG) | Eye movement | ICA decomposition; reject components | | Movement | Cable swing | Secure cables; use active electrodes | | DC drift | Sweat/poor contact | High-pass 0.5 Hz; reapply electrodes |
data = board.get_board_data(1250) # 5*250 samples board.stop_stream() board.release_session() openbci