Title :
High-frequency oscillations (HFOs) in electroencephalography: Review and case study
Author :
Macedo, D.R. ; Silva, G.M. ; Fortes, A.P. ; de Sa, G.P. ; Borges, J.V. ; Campos, Mario ; Rodrigues, T.S. ; Destro Filho, J.B.
Author_Institution :
Biomed. Eng. Lab., Fed. Univ. of Uberlandia (UFU), Uberlandia, Brazil
Abstract :
This article presents a review focusing technological aspects of EEG recordings considering the frequency band 40-500 Hz. This includes the “Gamma” (40-80 Hz) and “Supergamma” (80-100 Hz) rhythms, which has been extensively analysed for animal models since the 80´s. On the other hand, the band 100-500 Hz, abbreviated by “High-Frequency Oscillations”-HFO, has been studied since 1995, focusing epilepsy in both human and rat models. Current challenges are highlighted from the literature, leading to guidelines for those starting in the field, so that at the end we present two examples of HF0 recorded (1-100 Hz) in normal individual and in a patient from our local university hospital.
Keywords :
diseases; electroencephalography; medical disorders; medical signal processing; EEG recordings; HFO; animal models; electroencephalography; epilepsy; frequency 40 Hz to 500 Hz; high-frequency oscillations; human models; local university hospital; rat models; supergamma rhythms; Electroencephalography; Epilepsy; Hafnium oxide; Neurophysiology; Oscillators; Visualization; Electroencephalografphy; High-Frequency Oscillations (HFOs); Signal processing;
Conference_Titel :
Biosignals and Biorobotics Conference (BRC), 2013 ISSNIP
Conference_Location :
Rio de Janerio
Print_ISBN :
978-1-4673-3024-4
DOI :
10.1109/BRC.2013.6487546
