Automatic Elimination of Electrode-Pop Artifacts in

A circuit is described for automatic on-line real-time elimination of electrode-pop artifact from EEG recordings, which can occur occasionally from a sudden change in the dc contact potential at an electrode. The circuit, which functions irrespective of polarity and amplitude (over a wide range) of the artifact, is intended primarily for eliminating this artifact from EEG´s for computer analysis, from which spurious results can otherwise emerge. Examples of operation of the circuit are included.