EXTRACTING INFORMATION FROM MULTICHANNEL VERSUS SINGLE CHANNEL EEG DATA IN EPILEPSY ANALYSIS

The EEG is one of the major tools used in the diagnosis of epilepsy. EEG recorded during an epileptic seizure reflects the disturbed ongoing background EEG that exhibits a mixture of evolving rhythmic activity and heavy artifactual contamination. The electrographic recordings yield information about the seizure origin and the extent of spread of the activity over time. However, analysis of epileptiform EEG with traditional methods is severely hampered by contamination of the ongoing EEG with artifacts from various sources — muscle artifacts (EMG) being one of the major contributors.