STATISTICAL VARIABILITY OF AUDITORY RESPONSES TO AMPLITUDE MODULATION (FriAmPO4)

Author(s) : Boris Gourévitch (LTSI, INSERM, Université de Rennes 1, FRANCE) Régine Le Bouquin Jeannès (LTSI, INSERM, Université de Rennes 1, FRANCE) Gérard Faucon (LTSI, INSERM, Université de Rennes 1, FRANCE)

Abstract : The response of the human auditory system to amplitude modulation (AM) presents oscillating activity in stereoelectroencephalographic (SEEG) signals, the oscillation frequency being very close to the modulation frequency (MF). Numerical studies that may be realized on these SEEG signals mainly focus on the estimation of three parameters: the amplitude, phase and frequency of the oscillation. To improve their estimation, noise reduction techniques are discussed. The estimations errors are analyzed on simulated and real data. Results show that the parameters variability may be explained only by the signal-to-noise ratio (SNR) level in SEEG recordings.

Menu