Sort artifacts before tuning the decoder
Classify BCI signal observations into neural intent candidates, physiological artifacts, and hardware/contact artifacts before choosing controls.
Sort each signal observation into the cause bucket it most likely belongs to. Neural intent candidate Physiological artifact Hardware or contact artifact Task-locked P300 peak appears about 300 ms after rare target flashes. Large burst appears in temporal channels whenever the participant clenches their jaw. One channel jumps to flatline after the cable is bumped. Sensorimotor rhythm power changes over C3/C4 during practiced hand imagery. Slow drift increases as electrode impedance rises over the session. Blink-shaped deflections align with every visual target onset. Two neighboring electrodes become nearly identical after fresh gel spreads between them. Error-related negativity appears after visibly…
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