The Mixture of EEG Signal and Ocular Interference Modeling in the Head Volume Conductor

Authors

Abstract

EEG signals are usually contaminated with some interference like eye electrical activity. Ocular interference is produced by eye electrical activity that propagates through the head volume conductor and contaminates the scalp EEG electrodes. Therefore, ocular artifact is stronger in frontal EEG recording channels. Removal of Ocular artifact is necessary in many applications such as BCI (Brain- Computer Interface) and EEG diagnostic usages. In order to remove ocular artifact, many methods have been proposed. Most of these methods have some problems especially in modeling of the mixture of EEG and Ocular artifact in the head volume conductor. In this research in addition to literature review and analysis of old methods, a new validation method based on modeling of EEG signal, Ocular artifact and the mixture of EEG and ocular artifact in the head volume conductor is presented in order to validate the methods of removal of ocular artifact.

Keywords


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