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System for the prediction, rapid detection, warning, prevention, or control of changes in activity states in the brain of a subject

  • US 20100198098A1
  • Filed: 12/05/2009
  • Published: 08/05/2010
  • Est. Priority Date: 01/06/1997
  • Status: Abandoned Application
First Claim
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1. A method of detecting the occurrence of abnormal activity in the brain of a subject, said method comprising the steps of:

  • (a) receiving into a signal processor input signals indicative of the subject'"'"'s brain activity;

    (b) determining ictal components in said input signals by applying to said input signals a first filter configured for extracting and enhancing ictal components from said input signals;

    (c) measuring the ictal activity in a foreground epoch of said input signals by applying an order-statistic filter to said ictal components corresponding to said epoch to produce a foreground measure of ictal activity;

    (d) determining whether said foreground measure reaches a threshold level, such being indicative of the occurrence of said abnormal activity and(e) performing steps (a)-(d) while said abnormal activity is occurring.

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