Spread of Epileptic Seizure Activity in Humans
- 1 February 1985
- Vol. 26 (1) , 85-94
- https://doi.org/10.1111/j.1528-1157.1985.tb05192.x
Abstract
A computer-augmented approach to ictal EEG analysis was developed. A method for determining both the predictability of one signal from another and the time delay between those 2 signals, the average amount of mutual information (AAMI) method, was applied to representative seizures of 2 patients with focal-onset seizures and 1 patient with generalized seizures. High AAMI values characterized the EEG derived from the sites of the epileptic foci. AAMI values were high in all sampled brain areas in the patient with generalized seizures. Time delays were not consistent in any subject. Apparently, the AAMI technique can differentiate focal from generalized seizures and identify the site of seizure onset.Keywords
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