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Author Van, Van Hoey ♦ Walle, R. Van De ♦ Vanrumste, B. ♦ Lemahieu, I. ♦ Boon, P.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Eeg Source Analysis ♦ Technique Applied ♦ Electrical Activity ♦ Estimated Location ♦ Potential Di Erences ♦ Source Activity ♦ Radar Signal Processing ♦ Head Surface ♦ Di Erent Property ♦ Erent Beamformers ♦ Human Brain ♦ Predefined Region ♦ Time-varying Potential Di Erences ♦ Spatial Specificity ♦ Source Region ♦ Beamforming Technique ♦ Surgical Treatment ♦ Eeg Signal ♦ Spatial Filtering ♦ Small Region ♦ Electrical Brain Activity ♦ Weight Factor ♦ Epileptic Seizure ♦ Important Additional Information
Abstract The electrical activity of the human brain causes time-varying potential di#erences on the head surface. The electroencephalogram (EEG) is a measurement of these potential di#erences between electrodes on the head. When the electrical brain activity is limited to a small region in the brain (e.g., during epileptic seizures), the source region within the brain can be localised by analysing the EEG. The estimated location of the source provides important additional information in the planning of a surgical treatment of the epilepsy [1, 2]. Beamforming techniques for spatial filtering, originally designed for applications in radar signal processing, are able to extract from the measured EEG signals, the source activity of a predefined region of interest within the brain. Depending on the way in which the weight factors of the beamformer are chosen, di#erent beamformers can be constructed with di#erent properties concerning spatial specificity and sensitivity to noise. By using simulated E...
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study