System for the prediction, rapid detection, warning, prevention or control of changes in activity states in the brain of a subject
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United States of America Patent
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Apr 15, 2003
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N/A
app pub date -
Jun 10, 1999
filing date -
Jan 23, 1996
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Abstract
A system (10) analyzes signals representative of a subject's brain activity in a signal processor (12) for information indicating the subject's current activity state and for predicting a change in the activity state. One preferred embodiment uses a combination of nonlinear filtering methods to perform real-time analysis of the electro-encephalogram (EEG) or electro-corticogram (ECoG) signals from a subject patient for information indicative of or predictive of a seizure, and to complete the needed analysis at least before clinical seizure onset. The preferred system then performs an output task for prevention or abatement of the seizure, or for recording pertinent data.
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