Pitfalls of high-pass filtering for detecting epileptic oscillations: A technical note on “false” ripples

Abstract Objectives To analyze interictal High frequency oscillations (HFOs) as observed in the medial temporal lobe of epileptic patients and animals (ripples, 80–200 Hz and fast ripples, 250–600 Hz). To show that the identification of interictal HFOs raises some methodological issues, as the filte...

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Veröffentlicht in:	Clinical neurophysiology 2010-03, Vol.121 (3), p.301-310
Hauptverfasser:	Bénar, C.G, Chauvière, L, Bartolomei, F, Wendling, F
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Animals Bioengineering Biological and medical sciences Biological Clocks Biological Clocks - physiology Brain Mapping Brain Mapping - methods Convulsants Disease Models, Animal Electrodiagnosis. Electric activity recording Electroencephalography Electroencephalography - methods Epilepsy Epilepsy, Temporal Lobe Epilepsy, Temporal Lobe - diagnosis Epilepsy, Temporal Lobe - physiopathology Evoked Potentials Evoked Potentials - physiology Filtering Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy Humans Investigative techniques, diagnostic techniques (general aspects) Life Sciences Male Medical sciences Nervous system Nervous system (semeiology, syndromes) Neurology Oscillations Pilocarpine Rats Rats, Wistar Ripples Signal Processing, Computer-Assisted Temporal Lobe Temporal Lobe - drug effects Temporal Lobe - physiopathology Time Factors Time-frequency
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