Detection of seizure precursors from depth-EEG using a sign periodogram transform

  title={Detection of seizure precursors from depth-EEG using a sign periodogram transform},
  author={Joel J. Niederhauser and Rosana Esteller and Javier R. Echauz and George J. Vachtsevanos and Brian Litt},
  journal={IEEE Transactions on Biomedical Engineering},
Brief bursts of focal, low amplitude rhythmic activity have been observed on depth electroencephalogram (EEG) in the minutes before electrographic onset of seizures in human mesial temporal lobe epilepsy. We have found these periods to contain discrete, individualized synchronized activity in patient-specific frequency bands ranging from 20 to 40 Hz. We present a method for detecting and displaying these events using a periodogram of the sign-limited temporal derivative of the EEG signal… CONTINUE READING
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