Time-frequency Analysis of Eye Blinks and Saccades in EOG for EEG Artifact Removal

TitleTime-frequency Analysis of Eye Blinks and Saccades in EOG for EEG Artifact Removal
Publication TypeConference Paper
Year of Publication2007
AuthorsNoureddin, B., P. D. Lawrence, and G. E. Birch
Conference NameNeural Engineering, 2007. CNE '07. 3rd International IEEE/EMBS Conference on
Pagination564 -567
Date Publishedmay.
KeywordsEEG artifact removal, electro-oculography, electroencephalogram, electroencephalography, electrooculogram, eye blinks, saccades, time-frequency analysis, video-based eye tracker

The electro-oculogram (EOG) is commonly used to detect, reject and remove ocular artifacts (OAs) from the electroencephalogram (EEG). We present a new time-frequency analysis of OAs found in the EOG. Our results indicate that in some tasks and subjects, frequencies up to 181Hz exist. Based on these results, we propose a minimum sampling rate for EOG. In addition, since EOG measurements typically contain signals other than OAs (including underlying EEG), we propose an alternate measurement of OAs based on a video-based eye tracker, and suggest a minimum frame rate for the use of such devices


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