Characterization of auditory evoked potentials recorded in radiofrequency fields

摘要: This paper deals with the analysis of auditory evoked potentials recorded in presence radiofrequency fields emitted by a mobile phone. During measurements, spurious frequencies appear on one hand at 50, 100, 150 Hz but and other around 83.3, 133.4 216.7 Hz. The first ones are due to mains that comes from GSM modulation. We show two others (83.3 Hz) related component sampling frequency. In order get rid these parasitic components, low-pass filtering is applied before further analysis. A study acquisition system behavior band [0; 40 Hz] carried out conclude validity this