Artifact removal from EEG with a preprocessing for preserving desired bands

Abstract

Artifacts such as eye movements, muscle, electrocardiogram (EKG) and line noise may cause severe contamination in Electroencephalogram (EEG). The independent component analysis (ICA) is the general method to remove the artifacts within electroencephalographic traces. Desired bands in specific EEG analysis, however, may be seriously eliminated in the deflation procedure. A preprocessing with extraction of desired bands in the ICA is presented to prevent the desired bands from cancellation in the process of artifact rejection. Thus, the desired bands in EEG can be completely preserved while removing the artifacts. Some real EEG recordings are provided to demonstrate the effectiveness of the proposed method. © The Authors.