A New Technique for Removal of Artifact from EEG Signal

The surface electroencephalogram (EEG) is the electrical activity of the brain obtained by scalp electrodes. When eyes move, the electrical field around them changes and produces an electrical signal known as EOG. As this signal propagates over the scalp, it appears on the recorded EEG as noise or artifacts that should be removed in order to cancel its interpretation with background EEG. Because the magnitude of the EOG artifact is usually about the order of the amplitude of EEG signal, removing this artifact is one of the most important problems in studying the brain activities.